4l80e Transmission Problems

4l80e Transmission ProblemsIn this video, Curt goes through how to tear down a 4L80E. Then he talks about the common problems found in this transmission and the solutions to those prob. Silverado & Fullsize Pick-ups - 4L80 transmission problems - I have a 2000 chevy silverado 2500 6.0Lwith only 115000kms on it over the last couple monthsthe4L80 transmission …. Rebuild a 4L80E Transmission with the Tra…. Central IL. 1985 GM trannys were th350 th400 and 700R4 . The 700R4 was the predecessor to the 4l80E, they even looked a lot alike. The early 700R4 trannys had a LOT of trouble when the vehicle was used in towing with out a large cooler. The 700R4 has some plastic seals inside and when they get too hot, they give up.. Automatic Transmission - 4l80e shifting problems, Looking for help - First time here and looking for help thank for your thoughts, not sure where to post my . 4L80E transmissions are powerful but complex machines. And with such power and intimacy comes the increased risk of developing transmission problems over time. When faced with these problems, the best course of action is to get the transmission fixed or replaced with a 4L80E Transmission …. The 4L80E has a max torque rating of 440 lb.-ft. of torque, giving it a max load capacity of 18,000 pounds. The gearing to move such a heavy load is a 2.48 first gear, 1.48 second, 1.00 third, and 0.75 overdrive. These transmissions …. In this video, Curt goes through how to tear down a 4L80E. Then he talks about the common problems found in this transmission and the . GM V8 Tuning - Transmission; 4L80e problems; Results 1 to 13 of 13 Thread: 4L80e problems. Thread Tools. Show Printable Version; 07-07-2017 #1. Jonesy. View Profile View Forum Posts The trans is a 4l80e and the tuner selected 4l60e. My truck is a 2000 Chevy k2500 with a 383 stroker, tuned port injection, 0411 upgrade, long tube headers. 4l80e transmission will not up shift after rebuild will not shift out of 1st gear it has reverse. the internal selinoid has gone bad in the transmission may have caused damage internally in the gears transmission needs to be taken apart and inspected. Read full answer. Dec 19, 2010 • 1991 GMC K2500.. 4l80e Transmission Fluid Temperature The 4l80 runs in the 180-200 range when fully warmed up, To combat transmission temp issues, installing an aftermarket transmission cooler is certainly helpful along with a deeper, higher capacity transmission pan if you have the space to do so, and thermostat bypass. 4l80e Transmission Filter. 4L80E Transmission Problems. The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher horsepower and …. Holley Dominator EFI currently supports the use of 4L60E, 4L65E, 4L70E, 4L80E, and 4L85E transmissions. PN 558-405 is a fully terminated harness for these applications. The following reviews installation of this harness. Main Transmission Connector - Simply plugs into the connector on the transmission.. We offer a complete suite of transmission repair, maintenance, and part replacement services, flexible payment plans, and one of Canada's best warranties. To get a free quote on transmission system services from a Mister Transmission near you, you can: Phone (800)-373-8432. Email [email protected] ABS Trouble Codes C0236 and C0237 on 2002 GMC Envoy SLT AWD The symptoms are throwing these two codes. I replaced the speed sensor on the transmission…. 4L80E stuck with only 2nd gear and reverse. -Will manually shift into 1st, but in 2nd, D, and OD starts and stays in 2nd. (and possibly abused) 94 GMC Sierra 3500 extended cab with a 4L80E had the same problem (only 2nd and reverse). Took it to Croteau's (our local transmission expert--you'd like him as he is a top notch transmission expert. I try to use 4L60E and 4L80E Dominator transmission configs. On 60 config my transmission have only 1-2 shifts, no 3-4. On 80 config I have 1-2-3 shifts and transmission goes to neutral, not to 4. At each configs I have no 1st gear when I shift from neutral to drive. No I have no variants how to fix this.. We offer a complete suite of transmission repair, maintenance, and part replacement services, flexible payment plans, and one of Canada’s best warranties. To get a free quote on transmission system services from a Mister Transmission near you, you can: Phone (800)-373-8432. Email [email protected]…. The General Motors 4L60 transmission was introduced in 1992 and is used in many vehicles to this day. You can find it in GM products that include, …. Welcome to the '90s. The 4L80E is a truck automatic transmission that was introduced by GM in the early '90s. It basically uses many of the same internal components as the TH400 but has an. 4L80E stuck with only 2nd gear and reverse. GMC Sierra 3500 extended cab with a 4L80E had the same problem (only 2nd and reverse). Took it to Croteau's (our local transmission expert--you'd like him as he is a top notch transmission expert). In the mid-late 90's the GM trucks had a common ignition switch failure …. Registered. Joined Sep 28, 2010. 6,616 Posts. #3 · Nov 6, 2020. Crispyt said: A buddy of mine has a 2003 1500HD with a 6.0l and a 4L80E transmission. He's getting a shift code for solenoid B (2-3 shift). We are going to drop the pan and replace the shift solenoids and TCC solenoid. Does the valve body need to be removed to replace them or can. 4L80E Hard Shift Problems. Thread starter Billy_the_Kid; Start date Mar 25, 2004; B. Billy_the_Kid Well-Known Member. Joined Aug 5, 2002 Posts 166 RDC Crypto 0 Location Otherwise no transmission codes came up, and they cold not repeat the hard shifts that we had experienced the day before. He said there is a known problem with the 4L60E. MICHIGAN. Aug 9, 2009. #1. Heres some info on the early 4L80E transmission problems. I thought it may help someone out. The 4L80E is being found in more and more high performance, race, and tow vehicles over the last few years. And it's no secret why. The 4L80E…. 4L80E Transmission. The 4L80E transmission is another General Motors transmission that was designed for longitudinal engine configurations. This particular series included four forward gears and is an evolution of the turbo-hydramatic 400. This transmission was optioned only in vans, commercial vehicles, the Hummer H1, and Chevrolet or GMC pickups.. The 4L80 and 4L85 were built at Willow Run Transmission in Ypsilanti, Michigan. The "MN8" 4L85-E is able to handle vehicles with up to 460 ft·lbf (624 N·m) of torque. Final drive ratios include 3.42, 3.73, and 4.10. The "MT1" 4L80-E is able to handle engines with up to 440 ft·lbf (597 N·m) of torque. [1]. OT: 4L80E trans leak at elec. connector?. 13. Thank for the suggestion Steve, I checked everything out last night and everyting check out OK. Both vss are plugged in the right location , the 4L80 E connector is into the TCU unit , the 4l80E program is selected . I reset the lockup speed at 45 , rate at 65% delay 3 seconds & the WOT applu is off.. Erratic shifting: The 4L80E had shifting problems as a result of a failed throttle position sensor or input/output speed sensor.. A bad shift solenoid can cause no 3'rd or 4'th gear in the 4L80E Shift Solenoids If you are experiencing no 3rd or 4th gear, it can often be caused by the shift solenoids. If they can't engage a gear properly, the transmission won't be going into that gear. In this case, it's probably going to be the 2-3 shift solenoid. 3/4 Clutch Pack. The 4L80E transmission problems include the following: Erratic shifting: The 4L80E had shifting problems as a result of a failed throttle position sensor or input/output speed sensor. Overheating: Transmission fluid helps to remove heat generated from the moving internal components in the transmission. On the other hand, if a heavy load is. Since your transmission has 200Ks on it the problem is likely that the valve sleeve bore has worn. When the Torque converter Solenoid strokes the piston the transmission fluid leaks past when hot. The hydraulic signal get so weak that it will no longer activate the control valve within the pump thus kicking in OD. This image has been resized.. My dad has a Chevy van with the 4l80e. He bought it with a rebuilt tranny/torque converter, but the torque converter was no good and they replaced it under warranty. He had similar issues once the tranny warmed up until they replaced the converter. The transmission temps would also skyrocket on the highway.. The 4l80e transmission was found in a many heavy duty GM and high end luxury vehicles, such as Rolls Royce, Bentley, and Jaguar ranging from model years 1991 – 2013. Get The Best Price on Derale 15960 Transmission Coolers. 4l80e Common Problems. Related Posts. 4l60e Transmission …. 14,585 Answers. These have a common problem with the transmission internal wiring harness. But , I would put an external transmission cooler on it first. Bypass the radiator. I just did one a few weeks ago and called for the cooler. The manager sold the harness. It had the same problem. Came back and put on the cooler.. The PCM can command the engine to momentarily drop power during a shift if there's a possibility of clutch damage - a too-common problem in transmissions of . The 4L80E Transmission is a 4 speed automatic transmission developed by General Motors. Bulletins. Mandatory Cooler Replacement/Bypass for all Commercial or Class 2 (or larger) Vehicles; Transmission Fluid. Manufacturer Transmission Type Transmission Fluid Fluid Amount (quarts) HUMMER: 4L80E: MERCON V: 13.5: CADILLAC: 4L80E: DEXRON VI: 13.5. Crosley. the 4L80E came in column shift applications. The shift linkage threaded shaft is the same design with one long shaft and one short shaft. The long shaft usually had a MLPS = Manual Lever Position Sensor. There would have been a cable from column shifter to the transmission…. 4L80e transmission problems Sign up for FREE! Become a GM-Trucks.com Member Today! In 20 seconds you can become part of the …. The 4L80E was designed for vehicles up to 8000 lbs. Step 1: Turning Key Position Before resetting the transmission control module, it is necessary to check the …. November 1, 2018 Roadkill Customs Technical Info. Three of the most common problems found in a GM 4L60E transmission are: 3 – 4 Clutch Pack Failure…. A delayed engagement is one of the most common problems with a transmission. Learn how to diagnose and fix a delayed engagement.. 4L80E AFL Repair Kits. 1991 to 2013 General Motors vehicles equipped with 4L80E and 4L85E automatic transmissions often wear out the actuator feed limit (AFL) valve bore. As a result, inadequate pressure rise and shift solenoid feed oil loss can occur. This can cause trouble …. With 4L60-E, 4L65-E, 4L80-E or 4L85-E. Condition: One or more of the following problems: - The Malfunction Indicator Lamp is on. - The transmission is defaulted to second gear (4L80/85-E). - The transmission …. The 4L80E Transmission system is equipped with a computer called the Transmission Control Module (TCM), located in the left/rear passenger seat compartment which interprets, ana- brake pedal, and transmission. The recorded codes stored in the TCM are known as trouble …. 4L80E Converter Installation - Summit Racin…. A problem with a clutch. Something wrong with the transmission solenoid. Old, damaged, and worn gears. Broken or worn transmission bands. If you do experience transmission slipping problems with your 4L60E, and it’s not down to transmission …. The 4L60E is a four-speed, electronically controlled automatic transmission used in light-duty trucks made by General Motors (GM). Though most automatic transmission diagnoses and repairs are beyond the scope of the home mechanic, you can. the 4L80e uses PWM controlled pressure solenoid. AW4 uses a TV cable (like the 700r4). my problem is with running full pressure all the time and how hard it is on the transmission and driveline. if the vehicle is going to be used "off road" only, a th400 (for example) could be swapped in in less than time for someone who is not a "wire guy".. The 4L80E transmission has some quirks and over the years has had several updates, the reason your 4L80E started shifting hard was because it was sensing slippage. If you have continuing problems, it might be time to change the sensors. When we had a 1993 K2500 6.5TD 4x4 new, it worked great, until it had about 36K on it. From then on, the. On the internet. May 15, 2012. #1. I had the 4L80E in my truck rebuilt after a major planetary failure. Now it runs in the 200-220F range with no load and no trailer under normal driving. If I keep the rpm's down (try to stay under 2000 everywhere), it will run more in the 150 range. But once it starts heating up, it doesn't cool down.. Before you attempt to diagnose electronic transmission problems: * Write down the trouble codes From the vehicle's computer as they flash over the transmission . The following is a list of problems and possible solutions, should your 4L80E suddenly start to give you trouble. P-R-N-D work, upshifts are erratic and occur at random engine speeds, will not upshift from first gear (no upshifts at all): This problem seems very serious in nature but in fact this is something very simple to fix.. Total loss of fluid or pump failure could be the cause of 4l60e transmission problems. That is one of the reasons your 4l60e lost all gears. …. 628. Las Vegas, NV., USA. 4L80E stuck with only 2nd gear and reverse. -Will manually shift into 1st, but in 2nd, D, and OD starts and stays in 2nd. -Checked for power at the ECM and checked grounds. -Swapped ECM as I had a spare laying around and it didn't fix it. -Checked continuity with wires. -Hooked up scan tool, no codes present.. 4L80E "must have" rebuild tools. Jump to Latest Follow 1 - 2 of 2 Posts. M AOL/flip in back, springs/spindles in front (tow vehicle for the Syclone). For sale …. GM Drivetrain & Suspension - Transmission problem '03 2500HD 6.0 / 4l80e 2wd Whine, delayed engagement, slip? - It had a slight whine a few . This problem is the number one most overlooked issue by other re-builders.. November 1, 2018 Roadkill Customs Technical Info. Three of the most common problems found in a GM 4L60E transmission are: 3 - 4 Clutch Pack Failure. Broken Drive Shell. Worn TCC Regulator Valve.. Silverado & Fullsize Pick-ups - 4L80 transmission problems - I have a 2000 chevy silverado 2500 6.0Lwith only 115000kms on it over the last couple . Introduction. A GM 4L80E transmission controller can control this versatile automatic transmission made by General Motors. It has been used in heavy duty vehicles like trucks, SUVs and utility vans. Its robust design and ability to handle heavy loads makes it a popular choice today in a wide variety of vehicles and custom builds.. 4L80CC/BHAP. This package facilitates the installation of the Reid Racing SFI bellhousings to a GM 4L80E transmission. This permits the adaptation of the GM 4L80E …. Hello gents and ladies, For the past a year or so I have been constantly thinking that my transmission (stock 4L80-e, first year) is constantly …. The following procedures will detail diagnostic testing, troubleshooting and corrective action for any existing faults. These. Transmission System tests may be . Search: 4l80e Adjustments. What is 4l80e Adjustments. Likes: 624. Shares: 312. Search: 4l80e Reverse Servo Replacement. As Departments, we see …. 4L80E Transmission. The 4L80E transmission is another General Motors transmission that was designed for longitudinal engine configurations. This particular series included four forward gears and is an evolution of the turbo-hydramatic 400. This transmission …. Similar to some other transmissions, the 6L80/90 may use a cooler bypass valve to improve transmission warm-up (figure 7). As …. Slipping Between Gears/Failure to Shift – The 4L80E transmission uses a total of 8 solenoids to actuate gear changes, and activate the lockup torque converter.. The Transmission Rebuilders Network is the place where the industries best transmission rebuilders work together to help solve the most complex automatic transmission problems. Whether you need 4L80E wiring diagram information, 4L80E transmission rebuilders tips, 4L80E technical information, 4L80E diagnostics, 4L80E troubleshooting help, or. The 4L80E is not without problems though, as hard shifts and losing the reverse gear are some of the most common problems reported from this transmission. 4L80E Performance Specs. The 4L80E is a manual transmission that has a maximum engine input torque of 440 lb-ft and is capable of providing an output torque of up to 885 lb-ft.. The 4L60 transmission would require a custom bracket to hook into the TV cable properly. Additionally, when comparing both transmissions, they don't also don't have the same geometry for engaging the torque converter. As a result, you will need torque converters to accomplish engagement.. Known 4L80E Transmission Problems. There have been known issues reported by some vehicle owners with the electronic gearboxes GM has produced. Issues that involve bad solenoids, lack of overdrive and no reverse shifting have plagued some truck and sport utility vehicle owners. All second hand transmission …. I'm trying to find the latest troubleshooting information for the HMMWV's 4L80E and 4L85E transmissions. I'm hoping you can either help me out or point me in the right direction. The troubleshooting guide that I have is for older HMMWV models. I'm working on an M1152A1 up-armored HMMWV. CW3 J.R.. Learn about common problems with automatic transmission linkage components.. I have a 2005 Chevy Silverado 2500HD 6.0L 4X4 - 4L80e Tranny w/70,000 Miles. Great Condition. Never had a problem with this truck until this past winter, Brutal! I pulled an engine code P0894 (Component in Transmission Slipping). I dropped the pan and change the Transmission Filter and installed Dex VI about 6 quarts.. Registered. Joined Sep 28, 2010. 6,616 Posts. #3 · Nov 6, 2020. Crispyt said: A buddy of mine has a 2003 1500HD with a 6.0l and a 4L80E transmission…. 4L80E transmission diagnostics for Isuzu NPR and NQR Trucks. GM W3500 and W4500 trucks. GM full size 3/4 and one ton trucks, vans and chassis. (8600+ GVW Trucks) The Gm 4l80E Cause: very common problems …. Make sure you press it all the way down. Depress the accelerator pedal all the way down to activate the kick-down switch. Keep depressing the pedal and continue to the next step. Step 3. Keep Waiting. Now, if you have come here to reset your Chevy's transmission control module, you need to be patient. All you need to do during this time. 3/4 Clutch Pack. Your 4L80E has a set of clutches that work with both 3’rd and 4’th gear. It’s referred to as the 3-4 clutch pack. A bad 3-4 clutch pack can certainly cause the 3’rd and 4’th gear to stop working. In fact, once the transmission “shifts” into third, it’ll feel like you lost the whole thing.. after some hard offroading my 4l80e tranny has decided to stop shifting into second gear. my fluid is clean, no burn smell. i drove home from the desert and the tranny was shifting perfectly fine ( this was on a saturday). perfect shifts, just like it always had.. Since your transmission has 200Ks on it the problem is likely that the valve sleeve bore has worn. When the Torque converter Solenoid strokes the piston the transmission fluid leaks past when hot. The hydraulic signal get so weak that it will no longer activate the control valve within the pump thus kicking in OD.. Vehicle with 4l80e transmission comes back after 5 months with no reverse and problem with forward gear.. The 4L80E has a max torque rating of 440 lb.-ft. of torque, giving it a max load capacity of 18,000 pounds. The gearing to move such a heavy load is a 2.48 first gear, 1.48 second, 1.00 third, and 0.75 overdrive. These transmissions can be found behind 4.3 to 8.1-liter gas engines and 6.5 to 6.6-liter diesel engines.. change in Transmission. Temperature. 1) Stuck sensor: No Trans Component Slipping DTC.. How to tell if a transmission is good from a junkyard …. Gen 3, LS2 with 4l80e. PSI conversion harness and PCM. mild stall convertor. Still needs some engine tuning but trying to get the trans working first. Speed sensors and solenoids have been replaced. Still same problem. Thanks for any input. Attached Files. log2.hpl (24.3 KB, 3 views). If you struggle to engage gears properly as you used to, the chances are there is a problem with the valve body, which is considered the nerve . Pick-Up Trucks, Large Passenger and Cargo Vans, Campers, Trailers, RV's and Motor Homes - GM 4L80E Transmission Shift Problem - I'll keep . Common Reasons For Transmission Problems. Top 10 reasons why your transmission may be failing. You know your vehicle. So when it starts . SHOP THIS TRANSMISSION NOW4L80ELevel 4 4L80/4L80E- Rebuild - Rated to hold up to 1200HP Convert your 4L60E to a 4L80E!We provide sales and technical support 7 days a week from 8am to 10pm EST. Call us at 770-781-0949. *(Within Continental U.S. to most business addresses or nearest freight terminal) SUPER HEAVY DUTY 4L80E …. Topic: 4L80E transmission problem. Posted By: repcola46 on 06/29/16 01:39pm. Hello, I have an older Allegro Star class A motor home, it is a 1996 with the . 6L80E Transmission Problems & Solutions. Reverse Fails to Engage – If you’ve selected Reverse and your vehicle still won’t move, then it’s possible the …. The Gm 4l80E transmission is found in Chevrolet and GMC pick ups, G vans and commercial chassis with GVW of 8600 or greater from 1991 and up thru 2006, Isuzu NPR and NQR trucks as well as GMC/Chevrolet W3500 and W4500 trucks with either the 5.7 liter gas engine or the 6.0 liter gas engines after model year 2000 trucks. this is a computer. If the resistor is out of range that is your problem maybe. Chart shows what levels should be. Also, pull harness at trans and see if you . Common Chevrolet Silverado 2500 4L80E Transmission Problems. Failed Shift Solenoids. In order for the computer to control the hydraulic shifting systems, it . Solution A: Buy a Used Chevrolet Express 2500/3500 4L80E or 6L90 Transmission. Downtime costs you money, so buying a used 4L80E transmission or used 6L90 transmission might make sense. But you need to consider two things: Number One – that used transmission comes from a junk yard, so it might have the same problem that you’re trying to fix.. The 4L60E transmission weighs 146 pounds dry, and 162 wet. It requires 8.4 quarts (9.64″ torque converter) or 11.4 quarts (11.81″ torque converter) of transmission fluid, Top 30 Common 4L60E Transmission Problems and Repair. Below is a list of common transmission problems with the GM 4L60E Transmission …. Gm 4L80e transmission not shifting. Hello, I'm a mechanic in the marine corp. we've had an m1115 hmmwv in our shop for about 2 months now with transmission problems and haven't been able to figure it out. The transmission is a Gm 4L80e. It won't shift out of first and I've done everything from replacing the TPS to testing the TISS and TOSS.. Registered. Joined Sep 13, 2009. 5,482 Posts. Discussion Starter · #1 · Oct 20, 2013. So my 93 1 ton with a 4l80e will not go into forth or overdrive. When I bought it a week ago it would go into both when the trans got to 175 then it would go out. All I had to do is flick the key and get it back.. 4L80E Transmission Problems. The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher horsepower and torque trucks. It is the overdrive successor to the 3L80 (better known as the TH400 for most of it's life). It is significantly larger than the 4L60E and if you compare the cases side by side it makes.. MICHIGAN. Aug 9, 2009. #1. Heres some info on the early 4L80E transmission problems. I thought it may help someone out. The 4L80E is being found in more and more high performance, race, and tow vehicles over the last few years. And it's no secret why. The 4L80E, an electronic, overdrive-equipped version of the venerable TH-400, is tough enough. I had a .040 drill bit handy so drilled them. I had fully expected what I had done to NOT fix the 2nd gear start issue I was having. I was having a "NO 1st Gear" issue. Back up a bit. Trans is a 1997 4L80E…. Program your 4L80E shift strategy using the our World First smart phone integrated transmission controller. This makes programming dead easy - allowing programming via Android or iOS smart phones, tablets, PC's and Mac's. Connectivity includes both Bluetooth and dual independent CAN bus networks. All software is included.. Common "weak spots" in 4L60E Transmission problems: Below is a list of the weak points in a 4L60E transmission. These need an upgrade when putting more than ~300 horsepower through a 4L60E: •Input drum. •Overrun clutch hub. •Output shaft. •Input sprag (for extended high speed/load use in 4th) •Sun gear shell.. Good chance the converter in the 4l80e has problems at that mileage. there is no oversized solenoid for the 4l80 trans.. 4L80e Overheating - 2000-2014 Silverado & Sierra HD - GM-Trucks.com. Fullsize Truck & SUV - 1999-2006 GMT800 & 2007-2013 GMT900 Platforms. 4L80e …. Dear Half-Mast, I'm trying to find the latest troubleshooting information for the HMMWV's 4L80E and 4L85E transmissions. I'm hoping you can either help me . 4L80E Transmission Problems. The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher …. 3rd gear start and bind in "1" clutch pack is the problem. If it does not have 3rd start and bindup the solenoid was the problem. COMPLAINT: No Lockup. CAUSE: Stop light switch. COMPLAINT: No 3rd and or no Reverse. Solenoid OK. Code 87 CAUSE: Burned 3rd clutches. Broken drum/piston. SOLUTION: Correct excess pressure, with SK® Kit. Replace. (A handful of sport-utes come with them, too, but we covered those in a separate list. 4L80E Transmission Wiring Harness Diagram on 93 4l80e Trans Wiring …. Introduced alongside the original 4L60 in the early 1990's the 4L80E was designed for large trucks and is designed as a heavy duty unit, rather than a transmission for smaller cars or even some pickups. Applications that use this transmission include the 8.1 L Avalanche, the Tahoe, and the Hummer.. The odd thing is that the 4L80-E overdrive roller clutch seems to fail more often than that of the 4R100 during extreme use. The reason for this 4L80-E failure may come from a number of different avenues. Refer to the application chart ( Figure 5) and note that, in the overdrive range on the 4L80 …. 4l80e transmission. Used automatic great condition never had any problems, this came out of a 2006 chevy Express 3500 w duramax turbo diesel. Jun 24, 2020 · Casting. The oldest 4L80E transmission model was manufactured between 1991-94. On the side of the transmission (on the passenger’s …. Post was moved because you posted about a 4L80e trans in a 4L60e thread 2 different trans. Different causes of the 1870 code in each trans. Good chance the converter in the 4l80e has problems at that mileage. there is no oversized solenoid for the 4l80 trans. You could try a replacement lockup solenoid.. Remember the simple rules in diagnosis of separating the three areas of the transmissions (Hydraulic, Electric and Mechanical), as this does save that valuable time. Let's all be successful, keep those TECH TIPS coming. For the story behind this article, read Reverse Drum Wear: A 4L80 …. Check Trans Pump Operation. Common Problems. Transmission stays in gear for too long. Missing higher gears or transmission stuck in 1st gear. Missing reverse gear. Incorrect gear shifts, gear slipping or overheating. Shaking and shuddering when changing gears. Improbable transmission temperature. FAQ.. Here is a more detailed list of what can be the causes when a transmission is slipping: 1. Low Transmission Fluid. Low transmission fluid is probably the most common cause of why your transmission …. Diagnosing the Elusive No Reverse with the 4L80-E. Diagnosing a shift concern can be easy, as long as you understand some basic techniques to …. Common 4L80E Problems Torque Converter Not Locking Up: The torque converter on most modern automatic transmissions is made to lock up in order to allow for a physical connection between the engine and the rest of the drivetrain. This is achieved by placing a clutch in the torque converter that locks out the hydraulic torque multiplication benefits.. Another quick way to tell is determine whether the 3/4 ton is a light duty - has six lug wheels, or a heavy duty - has eight lug. At least in the trucks, the light duty will have the 4L60E and the heavy will have the 4L80E..Difficult Shifting. Even in a manual vehicle, a bad transmission speed sensor can cause gear shifting problems…. Mar 14, 2015. #1. I have a problem with my 4l80e transmission. It shifts very hard through all the gears and especially hard on the 1-2 shift. It is a 1991 Suburban, 3/4 ton, 4X4 with 244k miles. Original engine, 350ci runs great. The original owner replaced the trans at 100k and I took ownership at 190k.. TROUBLESHOOTING THE 4L80E AUTOMATIC TRANSMISSION INTRODUCTION The Hydra-matic 4L80E is a 4-speed automatic transmission which uses electronic control for smooth shifting. It offers a fourth gear overdrive to increase fuel efficiency. A torque con-verter clutch automatically engages at cruising speeds to improve fuel efficiency. Unlike. Maximum electronic control over shift points, shift firmness & shift speed. Completely intuitive programming interface or optional fully …. It was used for trucks and SUVs with the engine capacity from 5 liters. This transmission is extremely reliable, powerful, and not complicated in terms of design. It has been installed on army armored vehicles Cobra and armored fighting cars Eagle for many years.The 4L80 is a famous predecessor the 3-speed 3L80.. Diagnosing the Elusive No Reverse with the 4L80-E. Diagnosing a shift concern can be easy, as long as you understand some basic techniques to help get to the root of the problem. A reliable and orderly diagnostic approach is splitting the circuits. Splitting the circuits means separating and analyzing the hydraulic, electrical and mechanical. I’m trying to find the latest troubleshooting information for the HMMWV’s 4L80E and 4L85E transmissions. I'm hoping you can either help me out or point me in the right direction. The troubleshooting guide that I have is for older HMMWV models. I'm working on an M1152A1 up-armored HMMWV. CW3 J.R.. Central IL. 1985 GM trannys were th350 th400 and 700R4 . The 700R4 was the predecessor to the 4l80E, they even looked a lot alike. The early 700R4 trannys had a LOT of trouble …. I posted about my 96 to 97 4l80e swap well 96 -97 trannys are a little different mainly the cooler line location everything else is a direct . The torque converter is a fluid turbine drive and like those on its predecessor transmissions; the TH350C, 700R4, and 4L60, the 4L80 features a lock-up pressure plate for direct mechanically coupled driving from the engine crank. The 4L80 features a 310 mm torque converter. As to length, this transmission …. Dismantle the transmission to the point of being able to see the direct clutch drum in the case with the valve body removed. Make a simple air test to the direct clutch through the case to verify "both the feed passages" apply and hold. If it fails this test, remove and verify problem areas in the drum or on the support and retest.. There are several indicators when a vehicle may be experiencing transmission problems. If you notice any of the warning signs of transmission problems you should bring your car to a reputable repair shop immediately. Depending on the proble. Buy 4L80E 4L85E Transmission TCC Regulator Valve Kit Sonnax 34994-01K: Valve Body Kits Some vehicles with a 4L80-E transmission may exhibit the following problems: converter shudder, burned converters, no TCC clutch apply, and/or code 68/39 or P1870/P0741. Often these complaints can be caused by the constant oscillation of the steel TCC. The 4L80E transmission problems include the following: Erratic shifting: The 4L80E had shifting problems as a result of a failed throttle position sensor or input/output speed sensor. Overheating: Transmission fluid helps to remove heat generated from the moving internal components in the transmission…. The GMC K2500 was equipped with the 4L80E transmission and the 700R4 in 80's models. But they aren't without their problems though, so let's look at some of . 4L80E Transmission with Free Shipping, new lower prices on 4L80E 4x4, 4L80-E, 4L80, Heavy Duty 4L80E and other Monster 4L80E Transmissions ; 0; 800-708-0087 if you''re interested in a transmission, I would like to recommend Monster Transmission. I had no problems with the delivery or pickup. I am a Monster Transmission customer for life. I’m trying to find the latest troubleshooting information for the HMMWV’s 4L80E and 4L85E transmissions. I'm hoping you can …. This unit is also known as the MT1 transmission. Buy yours now while supplies last. Price may change for diesel applications once in cart. Core Deposit: $800.00. Please CALL before completing your order to verify core, shipping and vehicle info. 1-888-995-7278. $1,995.00 $2,795.00.. Post was moved because you posted about a 4L80e trans in a 4L60e thread 2 different trans. Different causes of the 1870 code in each trans. Good chance the converter in the 4l80e has problems at that mileage. there is no oversized solenoid for the 4l80 …. Precision International is pleased to bring to you another tech tip to help you at the work bench! In this edition, Precision's own tech advisor John Parment. These transmission system tests may be run any time you think there is a transmission problem. The most common problems are loose or corroded wiring connections. Figure 4. TCM Location Page 9 Troubleshooting the 4L80E Automatic Transmission Page 5 Transmission Control Module (TCM).. We recently had a 2006 one ton cube van with a slipping/shuddering transmission (4L80E). The transmission code indicated a torque convertor problem. The first step was to remove the transmission oil pan and check the filter. It was advised by one of the transmission shops to tear open the filter and see what's inside. We… Continue reading 4L80E GM Transmission TCC Failure. Just thought I'd give a little review of the problem I had with my 2001 Damon Daybreak. I bought it when it was 13 years old with 16000 . The 4L80E is the descendant of the "Ole Reliable" TH400 transmission. It shares many components and design features. At Jake's Performance the 4L80E is our most popular transmission. We have built them for applications ranging from heavy towing vehicles to 1800+ HP street/strip cars. The 4L80E has proven reliable like it's predecessor.. 4L80E Transmission Stock (97 and Up) Price: Select Options. Quick View. 4L80E Stage 1 (91-96) Price: Select Options. Quick View. 4L80E Stage 2 (91-96) Affordable Prices. No Core Charge on Most*. Worldwide Shipping. Transmission Depot Has Been Serving Our Local & Online Community for Over 30 Yrs. 9135 Eden Ave Hudson, Fl 34667; Phone. This is going behind a Pontiac 462ci motor making a bit over. The 4L80E transmission is the advanced progeny of the legendary TurboHydramatic TH400 automatic transmission, and is based heavily on the 400 in both parts and strength, yet featuring an added overdrive gear, a lock-up torque converter and advanced electronic controls. The 4L80E. My truck had this issue, or one very similar. The 4L80E transmissions have a defect where transmission fluid can leak up into the big round electrical plug and . In this video, Curt goes through how to tear down a 4L80E. Then he talks about the common problems found in this transmission …. My 4L80E is electronically controlled with a box from TCI (I love this thing!). The transmission was rebuilt by a high performance shop to reliably take 1000 HP on the street, but at this time it is sitting behind a rather mild 455 pushing around 450 HP, 450 lb-ft torque.. 4L80e transmission problems. Asked by Cpepper68, November 8, 2013 Share More sharing options Followers 0. Answer this question; Ask a question; Question. Cpepper68.. after some hard offroading my 4l80e tranny has decided to stop shifting into second gear. my fluid is clean, no burn smell. 2. 4L60E No 3rd Gear The 3rd to 4th clutches can wear out quickly. If you find a lot of problems when you are shifting from 3rd to 4th, this could be the issue. Like most of these cases, the transmission will need a full rebuild. Specifically, the 3-4 clutch pack needs replacing. It's caused by the rubber seals on the 3-4 piston shrinking.. The 4L80E transmission problems include the following: Erratic shifting: The 4L80E had shifting problems as a result of a failed throttle position sensor or . 4L60E 4L80E Neutral Safety Switch Connector Pigtail 4 Wire MLPS Range Switch New $13.85 Free shipping 74 sold Seller 99.4% positive GM ABS Wheel …. GM 4L80E technical information The 4L80E transmission is a four speed automatic with torque converter clutch. This is a computer controlled transmission first introduced in G.M. light duty trucks for 1991. The only way to retrive trouble …. It has to die-cast aluminum case with tail housing and bell housing pattern. The flex plate in 4L80E is as same as TH400. Torque converter controls by a PWM …. The 4L60 transmission would require a custom bracket to hook into the TV cable properly. Additionally, when comparing both transmissions, …. The 4L80E transmission was mostly used in 34- and 1-ton trucks and larger SUV applications beginning in 1991. The "E" means that it must use an electronic ECU for control, as it will not function. If you notice any of these common signs of a failing torque converter or other transmission problem, it's time to get your transmission inspected and . The TCC releasing at 0% Throttle Position is completely normal for a stock 4L80E calibration (Any TP below 2% in most calibrations) & re-enables the TCC apply above 4% TP. that Sonnax.com is a great resource if you want to learn what the most common problems are for a given transmission. Sonnax makes well engineered upgrades for most. 4l80e forward in all gears. Jump to Latest Follow 1 - 9 of 9 Posts. S. stevenf · Registered. Joined Apr 27, 2008 · 205 Posts . Discussion Starter · #1 · Jan 8, 2014. Only show this user Ive read this is a common problem with a wore out transmission …. Silverado & Fullsize Pick-ups - 4L80 transmission problems - I have a 2000 chevy silverado 2500 6.0Lwith only 115000kms on it over the last couple monthsthe4L80 transmission hasbeenhaving really hard shifts after drivingon the highway for 30-40 min in D4 the engine light comes on and the code p1870 comes up on the Log In Register Forums. and the 4L80E has two speed sensors, an IN and an OUT. usually with a speed sensor problem it will go into "safe mode" which is only first gear. intermittent problems are a pain to diagnose but id still check again for hard codes with a GM TECH 2 before i did anything else.. The lugging in lower gears (mostly first) is due to the converter locking up prematurely. Additionally, if left long enough, a look in the trans . 4L80E transmissions are powerful but complex machines. And with such power and intimacy comes the increased risk of developing transmission problems over time. When faced with these problems, the best course of action is to get the transmission fixed or replaced with a 4L80E Transmission rebuild kit. That said, many drivers continue to drive. How To Solve The 4l80e Transmission Problems? · worn gears, the band is not working or broken, low or leaking transmission fluid, the torque converter has issues . TCI EZ-TCU Electronic Transmission Controller View All TCI EZ-TCU Electronic Transmission Controller TCI EZ-TCU Control Unit 2009-Down GM 4L60E, 4L65E, 4L80E, 4L85E Transmissions. 3rd gear start and bind in “1" clutch pack is the problem. If it does not have 3rd start and bindup the solenoid was the problem. COMPLAINT: No Lockup. CAUSE: Stop light switch. COMPLAINT: No 3rd and or no Reverse. Solenoid OK. Code 87 CAUSE: Burned 3rd clutches. Broken drum/piston. SOLUTION: Correct excess pressure, with SK® Kit. Replace. Here is a more detailed list of what can be the causes when a transmission is slipping: 1. Low Transmission Fluid. Low transmission fluid is probably the most common cause of why your transmission is slipping and probably also the easiest to fix. When the fluid level drops, the pressure required to engage the gears properly is reduced.. My dad has a Chevy van with the 4l80e. He bought it with a rebuilt tranny/torque converter, but the torque converter was no good and they replaced it under warranty. He had similar issues once the tranny warmed up until they replaced the converter. The transmission …. According to experts, this issue is caused due to worn out discs inside the 3-4 clutch pack. Chevy Silverado 4L80E Transmission. The 4L80E . 4L80E Transmission with Free Shipping, new lower prices on 4L80E 4x4, 4L80-E, 4L80, Heavy Duty 4L80E and other Monster 4L80E Transmissions ; 0; 800-708-0087 if you''re interested in a transmission, I would like to recommend Monster Transmission. I had no problems with the delivery or pickup. I am a Monster Transmission …. Solution A: Buy a Used Chevrolet Express 2500/3500 4L80E or 6L90 Transmission. Downtime costs you money, so buying a used 4L80E transmission or used 6L90 transmission might make sense. But you need to consider two things: Number One - that used transmission comes from a junk yard, so it might have the same problem that you're trying to fix.. 4L80E transmission differences and if these two can be used majority of them specialized in advanced diagnostics and troubleshooting.. Go to at least this sized servo upon a rebuild 48re a618 47rh 47re transmission torque converter : stage 3, billet lid, multi-disc, 1900-2400 stall lock-up 1000ft/lbs fits '94-'07 ram 2500 3500 This is a discussion on 4L80e no reverse when hot within the Automatic Transmission forums, part of the Drivetrain category; Hi guys, i have a 4l80e …. The 4L80E transmission in my 1992 Chevy Suburban 2500, 4x4, 7.4L was hard shifting from 1st-2nd and from Park to Reverse. I just drove it for …. 4L80/85E Transmissions. 6L90 Transmission. The most common problem facing the 4L80-E NO OVERDRIVE and how to deal with it. Info: Jump to Latest Follow Shifting solenoids do pertain to issues …. Crosley. the 4L80E came in column shift applications. The shift linkage threaded shaft is the same design with one long shaft and one short shaft. The long shaft usually had a MLPS = Manual Lever Position Sensor. There would have been a cable from column shifter to the transmission. You need to figure out the correct parts is all.. Let's look at a few common yet significant signs that tell those problems in your 4L80E transmission: Burning Smell Generally, the burning smell in your car indicates that you are driving the clutch, which means that you are partially keeping it engaged when driving. This can be damaging to the engine.. Get 4L80E transmission rebuilding tips, 4L80E troubleshooting help, 4L80E technical service bulletins, 4L80E diagnostics and 4L80E technical information from TRNW. All 4L80E …. Also, external sensors on the 4L60E and 4L80E transmissions are also known to go bad and cause erratic shifting. Other Shifting Problems. The 4L80E transmission . 4L80e transmission problems Sign up for FREE! Become a GM-Trucks.com Member Today! In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM. The 4L80E transmission problems include the following: Erratic shifting: The 4L80E had shifting problems as a result of a failed throttle position sensor or input/output speed sensor. Overheating: Transmission fluid helps to remove heat generated from the moving internal components in the transmission.. PCS GM 6L80/6L90 Transmission Control Module TCM-2650. This TCM is designed for retro-fitting the GM 6L80/90in applications that DO NOT have the means to control the transmission.. The 4L80 is doubtless a very successful OEM transmission, and a terrific conversion transmission in the right Jeeps and situations. However, with its 26-1/4" length, it is a longer transmission and is not compatible with short-wheelbase Jeeps such as the CJ5 in any scenario, or CJ7's if they have a lot of suspension lift. Transfer Case Adaptability. two problems with the 4l80e one could be line pressure, the other the 80e has a fail safe that wont let the trans shift to reverse if it senses a speed of greater than 8mph. i would first unplug the main plug for the trans, it can leak fuild into the plug and short the pins and cause all sorts of problems. if you see no fluid try to drive it with the plug unplugged in reverse. this will. R34004ES1_L2 - Chevy 4L80E Raybestos Stage 1 Performance Transmission Less Steels Level 2 Rebuild Kit 1990-96: R34008ES1_L2: R34008ES1_L2 - Chevy 4L80E Raybestos Stage 1 Performance Transmission Deluxe Rebuild Kit 1990-96: PT4L80-E: PT4L80-E - 4L80E 4L80-E Transmission …. The 4L80E transmission was mostly used in 34- and 1-ton trucks and larger SUV applications beginning in 1991. The "E" means that it must use …. The General Motors 6L80-E & 6L90-E transmissions are among the most diverse and capable transmissions of their time; being used in everything from exciting muscle cars to family SUV’s. In this Drivetrain 101, we’ll analyze all of its most prolific problems…. Transmission must be removed and rebuilt. Try not to run or drive the car or further damage could result. 9. No 2nd or 4th gear. 2-4 band is slipping: Servo seals may be damaged. Otherwise, 2-4 band is worn out. Transmission must be removed and rebuilt. 10.. 4L80E Common Problems. Fluid Leaks: transmission fluid is vital to the health of your vehicle and leaks are not something to be taken lightly.. Having read about a similar problem on another 4L80E, here in these and still shifting hard at times, plus this downshifting problem.. The Hydra-matic 4L80E is a 4-speed automatic transmission which uses electronic control for smooth shifting. It offers a fourth gear overdrive to increase . I have a 2005 Chevy Silverado 2500HD 6.0L 4X4 - 4L80e Tranny w/70,000 Miles. Great Condition. Never had a problem with this truck until this past winter, Brutal! I pulled an engine code P0894 (Component in Transmission Slipping). I dropped the pan and change the Transmission …. Transmission''Problems Of The … Jul 21th, 2022Installation Instruction For GM 4L80E Transmission Harness USING ROSTRA PART Www.rostra.com 1-800-782-3379 Installation Instruction For GM 4L80E Transmission Harness With Temperature Sensor 1. Remove Old Wire Harness From Valve Body. 2. Install New R Jun 1th, 2022. 4l80e Transmission …. 4L80E Transmission Problems. The 4L80E Transmission is a fully computer controlled transmission that comes bolted to the higher horsepower and torque trucks. It is the overdrive successor to the 3L80 (better known as the TH400 for most of it’s life). It is significantly larger than the 4L60E and if you compare the cases side by side it makes. The 4L80E has gear ratios of 2.48:1 (First), 1.48:1 (Second), 1.00:1 (Third), 0.75:1 (Fourth), and 2.07:1 (Reverse). When the 4L80E was …. With 4L60-E, 4L65-E, 4L80-E or 4L85-E. Condition: One or more of the following problems: - The Malfunction Indicator Lamp is on. - The transmission is defaulted to second gear (4L80/85-E). - The transmission is defaulted to third gear (4L60/65-E). - The instrument cluster is inoperative.. Some vehicles with a 4L80E transmission may exhibit the following problems: converter shudder, burned converters, no TCC clutch apply, and / or code 68 / 39 or P1870 / P0741. Often these complaints can be caused by the constant oscillation of the steel TCC regulator apply valve wearing the aluminum bore, resulting in a loss of converter apply. Vehicle with 4l80e transmission comes back after 5 months with no reverse and problem with forward gear.. Sep 29, 2021 · The thickness of the gauge block is in …. Program your 4L80E shift strategy using the our World First smart phone integrated transmission controller. This makes programming dead easy – …. The 4L80E transmission in my 1992 Chevy Suburban 2500, 4x4, 7.4L was hard shifting from 1st-2nd and from Park to Reverse. I just drove it for about 50 miles and the hard shifting (like a jump) has gon …. 4l80e transmission overheating the transmission overheats after towing about 25 miles, code 1810 comes up on scan, - Chevrolet 2005 Silverado question. This is the #1 reason for transmissions failure …. Install the trans in the car checked line pressure and was low. The newbie in me checked the pump looked ok to me but pulled the trans and the . 3/4 Clutch Pack. Your 4L80E has a set of clutches that work with both 3’rd and 4’th gear. It’s referred to as the 3-4 clutch pack. A bad 3-4 clutch pack can certainly cause the 3’rd and 4’th gear to stop working. In fact, once the transmission …. Description. 4L80E Torque Converter Clutch Regulator Valve Kit 34994-01K, 2TCC. Some vehicles with a 4L80E transmission may exhibit the following problems: converter shudder, burned converters, no TCC clutch apply, and / or code 68 / 39 or P1870 / P0741. Often these complaints can be caused by the constant oscillation of the steel TCC regulator apply valve wearing the aluminum bore, resulting. Apr 22, 2011 - '96 dodge 2500 transmission is having trouble staying in overdrive. Hetold me it could be the Throttle Position Sensor, the computer needs Oh and another thing, The brake safety for shifting out of park is 95 chevy 3500 6.5l trans issues…. This 4L80E-HD2 Reprogramming Kit fits 1991 to 2013 General Motors vehicles equipped with the 4L80E and 4L85E automatic transmission. Common complaints on this transmission are, no upshifts, soft 2-3 shift, burnt direct frictions, broken hard parts as well as gear ratio and solenoid performance codes. The boost valve assembly is notorious for. The 4-speed automatic transmission GM 4L80 was introduced 1990. It was used for trucks and SUVs with the engine capacity from 5 liters. This transmission is extremely reliable, powerful, and not complicated in terms of design. Technical issues and repair guidelines. This transmission …. Tuning 1990-2021 SCT Ford / Lincoln and Mercury Vehicles Including the Focus ST, Taurus SHO, Ecoboost Flex, Ecoboost MKS, Ecoboost MKT, Mustang GT and …. Here are some common issues that can force the transmission into limp mode. 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