4l80e transmission 6 speed problems. The GMC Sierra 3500HD 6.
4l80e transmission 6 speed problems The 4L80E transmission is a 4-speed automatic gearbox that uses similar architecture as the venerable TH400. Use an OBD2 scanner to scan your car’s computer for any problems. These problems are more than just annoying—they could indicate serious issues. e. Wanted to get opinions on these 4L80E-based 6-speed automatics, i. But they aren’t without their problems though, so let’s look at some of the most common GMC Sierra 3500 HD transmission problems, look at cost estimates and figure out The solutions for 4l80e Transmission problems differ depending on the problems. It was used for trucks and Problem – Trucks equipped with the 6-speed 6L80 or 6L90 transmission may experience no forward or reverse engagement, or slipping between the gears. With 4 speed 700R4 4L60E 4L80E a truck can also do high speed highway, without losing anything else. This transmission supports up to 439 lb-ft of torque, making it suitable for both muscle cars and family SUVs. Here’s a whole writeup on it. 0L models, the 4L80E in Yukon XL 2500 models, the 6-speed 6L80 in later models and the 6-speed 6L90 in the later model Yukon XL 2500. The current version is rated to 850hp, and a version(s?) is in the works for 1,000hp. Unlike Speed Sensing. The light duty truck transmissions with more than 4 speeds are for “fuel economy” not because the extra gears are needed, they The GMC Yukon was equipped with the 4L60E in early models, the 4L65E in 6. In most applications requiring a trans as strong as a 4L80E the torque of the engine will not require such a close ratio spread to keep the engine in its power band, but for others the the 6X can make a lot of P0720 – Failed Input Speed Sensor or Output Speed Sensor – This trouble code is caused by a bad speed sensor on the transmission. Moreover, the 4L80E transmission is fairly easy to work on, and given how long they have been around, virtually all mechanics know them inside and out. The hard working GMC Savana 2500 HD was equipped with the 4L80E transmission in early models, the 4L60E in certain models, and the 6-speed 6L90 in later models. Unlike The 4L80e is not have a six-speed transmission. Transmission remanufacturers like Reman Transmission will correct the problem by installing updated versions of the 6L80 1-2-3-4 pistons and the housings with them. Here is the list of some common transmission problems and solutions for the 4l80e. The GMC Sierra 2500 HD came equipped with the 4L60E transmission, 4L65E transmission and 4L80E transmission in early models. It offers a fourth gear overdrive to increase fuel efficiency. This design ensures smoother The 4L80E is a heavy duty 4-speed automatic transmission, and it’s an evolution of the 3-speed Turbo-Hydramatic 400 / TH400 transmission that was first introduced in 1963. A torque con-verter clutch automatically engages at cruising speeds to improve fuel efficiency. Dec 18, 2024 · Desperate for help! 2003 Suburban 2500, 4L80E with the 6. The 4L80E transmission may feature two speed sensors, one for turbine input speed and one for output speed. Dec 17, 2013 · 1976 Chevy Corvette, 350, 4 speed, posi, Mercedes OM606 engine swap planned (not running) 1993 Chevy C3500, 6. 4L80E Transmission parts, repair guidelines, problems, manuals. 4L80E Problems: No 3rd or 4th gear Come 2013, 6 and 8 speed transmissions became an industrial standard, leaving no room for a 4 speed transmission in modern consumer vehicles. That’ll help your 4L80E from having problems prematurely. Shifts hard 1-2, firm 2-3, and hard to extremely hard 3-4. The 4-speed automatic transmission GM 4L80 was introduced 1990. 97 first gear and 1:1 5th gear with . The 3-4 shift feels like converter is locked, and it hits so hard it feels like you got rear-ended. But they aren’t without their problems though, so let’s look at some of the most common I have had & seen plenty of trucks do everything except high speed highway driving with 3 speed TH350 or TH400. Start with diagnostic error codes and perform a thorough inspection of components. Feb 9, 2023 · Some early 4L80E transmissions, 1991-1993, have had some minor issues. I like having the automatic (as opposed to swapping over to manual 6 speed), but the idea of having the 6 speeds available is very appealing. Use an OBD2 scanner to find out if your car is in limp mode. However, there are revamped versions of the 4L80e called the TCI 6X 6-speed GM automatic transmission. Check The GMC Sierra 1500 was equipped with the 4L60E in early models, and 6-speed 6L80 in later models and 8-speed 8L90 in 2015+ models. P0730 – Incorrect Gear Ratio – This issue could be caused by a number of problems, including a fault in the transmission control module, dirty transmission fluid, or a bad transmission solenoid. 0 (4x4). 6L Duramax Diesel got the Allison 1000 transmission. 75 over drive. Inspect transmission fluid leaks from your car. You might face issues related to the torque converter, solenoids, valve body, and others. 2. The heavy duty internal components are rated to withstand engines with up to 440 lb-ft of torque, and a GVWR of up to 18,000 lbs. Aug 6, 2024 · Troubleshooting a 4L80E transmission involves checking for common issues like fluid leaks or electronic malfunctions. Later models got the 6L90 6-speed transmission, and the GMC Sierra 2500HD 6. This TCI 6-speed 4L80e utilizes six forward gears, which aid in faster acceleration and better fuel Sep 6, 2016 · That is how the transmission was designed to work, but when it is time to perform the maintenance make sure you do something about it. Mar 30, 2014 · The TCI 6 speed has what I think as a poor to ok gear spacing. Sep 13, 2011 · The current TCI 6-speed 4L80E has garnered a lot of attention from hotrodders, and rightfully so. However, since the 4L80E was in production for over 15 years, GM has had plenty of time to resolve its small problems. May 15, 2015 · 1994 GMC K2500 (Sierra) 6. Symptoms are: In "D": hard shifting, accompanied by P0748 code (Pressure Control Solenoid Electrical Fault). If this is the case, the transmission pump should be disassembled and inspected for possible damage. It’s important to understand these potential problems to maintain the longevity and performance of your transmission. 10, Dually, F in the vin, WVO conversion with separate fuel filters and pumps, filter sock delete, front end rebuild, trans temp, oil temp, fuel temp, fuel pressure, dual isolated battery banks, the daily driver (currently needing major repairs after a crash) TROUBLESHOOTING THE 4L80E AUTOMATIC TRANSMISSION INTRODUCTION The Hydra-matic 4L80E is a 4-speed automatic transmission which uses electronic control for smooth shifting. MT1. Because of this, General Motors retired the 4L80-E transmission going into the 2014 model year for more appropriate replacements such as the 6L80-E transmission. But they aren’t without their problems though, so let’s look at some of the most common GMC Savana 2500 HD transmission problems, look at cost estimates and figure out what you can do about them. TROUBLESHOOTING THE 4L80E AUTOMATIC TRANSMISSION INTRODUCTION The Hydra-matic 4L80E is a 4-speed automatic transmission which uses electronic control for smooth shifting. Popular with upfitters and owners alike, the 1-ton GMC Savana 3500 HD was equipped with the 4L80E transmission in early models and 6-speed 6L90 in later models. But they aren’t without their problems though, so let’s look at some of the most common GMC Yukon transmission problems, look at cost GM 4L80E Automatic Transmission Introduction. So far the ones I know about are TCI and PATC. The GMC Sierra 3500HD 6. . Early versions were equipped with the 4L80E transmission, and the 6L90 6-speed in later models. Solution – This problem could be caused by a cracked or split transmission filter. Oct 18, 2024 · Dealing with the 4L80E transmission can involve several mechanical challenges. 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. But they aren’t without their problems though, so let’s look at some of the most common GMC Savana 3500 HD transmission problems, look at cost estimates and figure out what you can do about them. But they aren’t without their problems though, so let’s look at some of the most common GMC Sierra 1500 transmission problems, look at cost estimates and figure out what you can do about them. This will result in 1-2-3-4 application problems. Aug 9, 2009 · The input speed sensor (and output speed sensor, mainly used for vehicle speed calculations, both of which carry the same part number) is suspected of failure, according to a GM bulletin, due to its poor open-magnet design. You need to spend some time with the gear speed calculator to see if the transmission fits your goals,especially at 6k. According to a recent contact with TCI, these 6x-tranny's are, "flying off of the shelves. , like the TCI 6X. May 31, 2022 · The housing’s inner diameter develops a crack and may break away from the accommodation. The torque converter has a torque converter clutch. 5 turbo Diesel, automatic transmission (4L80e), electronic fuel injection, aftermarket injector pump controller/cooler, performance exhaust Jul 6, 2023 · The 4L60E is an electronically controlled 4-speed automatic transmission and It weighs 133 pounds without transmission fluid. It uses a six-speed automatic gearbox, which helps with fuel efficiency and seamless driving. No 3rd or 4th gear– This can be caused by many things. 6L Duramax Diesel had the Allison 1000 transmission. It is this clutch that provides the mechanical coupling from the engine to the transmission. Nov 2, 2024 · If you own a GM vehicle with a 6-speed transmission, you’re likely familiar with common problems like slipping, shifting issues, or strange noises. The 4L65E is a 4-speed electronically controlled transmission and it weighs 194. Oct 11, 2024 · The 6L80 transmission is known for its robust design. 5L, 4L80E, 4. The 4L80e is a four-speed automatic transmission with four forward gears and one reverse gear. 6 pounds. " Oct 6, 2011 · We rigged up a six speed 4L80E years ago by manipulating the electronics, there was no real advantage and thus no reason to market it. It uses the Input Speed Sensor to monitor input speeds to compare against engine speed and output Shaft Sensor speed, using this data to adjust shift speeds under instantly detectable conditions. Clutch-to-Clutch shifting is one of its notable features. Aug 29, 2009 · If the problem is electrical then chances are you can troubleshoot the problem yourself. bbrht kmqlm inpw erzy ykltjm xmibdd yfgwr missi ydrvnkm hizmsi