7/14/2023 0 Comments Gm 6 speed transmission problemsIn 2011, GM issued a recall for 1.4 million vehicles with 6-speed automatic transmissions due to a defect that could cause the transmission to slip out of park. In some cases, these problems have led to recalls. These issues include rough shifting, delayed engagement, transmission slipping, and even complete failure. There have been a number of reports of problems with Chevy transmissions, particularly with the 6-speed automatic transmission in the Chevrolet Silverado and Tahoe. Again, there is no official word from GM on what may be causing this problem, but some believe it could simply be down to poor quality control during manufacturing (i.e., incorrect assembly).ģ) Transmission Fluid Leaks – Finally, another common problem that has been reported with the 6L80 transmission is leaks developing in the unit itself. In some cases, it may even cause the car to lurch forward unexpectedly. This can happen either when shifting from first to second gear or second to third gear. Until GM releases more information, it’s difficult to say for sure what is causing this problem.Ģ) Rough Shifts – A small number of drivers have also reported experiencing rough shifts from time to time. Some suspect that it could be due to an issue with the torque converter, while others believe it may be caused by a software issue. There are a few possible causes for this issue, but GM has not released any official information on what may be causing it. This appears to be most common when the transmission is cold, although there have been reports of it happening when the transmission is at operating temperature as well. The main problems that have been reported with the 6L80 transmission are:ġ) Shuddering/Vibration – Some drivers have reported a shuddering or vibration feeling when driving at highway speeds. The 6L80 replaced the older 4L60 four-speed automatic in many truck and SUV applications as well as some rear-wheel drive cars. It was introduced in the 2006 model year along with the Cadillac DTS and STS, and the Chevrolet Impala SS. The GM 6L80 transmission is a six-speed automatic transmission built for use in longitudinal engine applications. What are the Problems With the 6L80 Transmission? These problems can typically be avoided by regularly servicing the transmission and using high quality fluids. Some common issues that can arise are leaking seals, worn clutches, and excessive fluid contamination. The 6L80 is a reliable transmission when properly maintained. Sometimes simply flushing the fluid and changing the filter can extend the life of the transmission significantly. If your transmission does start having problems, there are a few things you can try before taking it in for expensive repairs or replacement. If you own a Chevy truck with a 4L60E transmission, it’s important to keep an eye on the temperature gauge and make sure you’re not driving it too hard or for too long without giving it a chance to cool down. In some cases, the transmission may even need to be completely replaced. These transmissions are known for their tendency to overheat and break down prematurely. The most common issue seems to be with the 4L60E transmissions, which were used in Chevy trucks from 1999-2007. What Years Did Chevy Trucks Have Transmission Problems?Ĭhevy trucks have been known to have transmission problems dating back to the early 2000s. 2015 Silverado 6 Speed Transmission Problems- See What Experts Say? This is obviously a serious safety issue, so if you own one of these trucks, be sure to take it to your dealer for repair as soon as possible. If that happens, it could lead to a loss of power while driving, or even cause the engine to stall. Chevy says that there’s a problem with the transmission’s torque converter that could cause it to fracture and leak fluid. The affected vehicles are the Chevrolet Silverado and GMC Sierra 1500 trucks from the 20 model years equipped with the 6-speed automatic transmission. If you are experiencing any of these problems with your Chevy 6 speed automatic transmission, it is important to take it to a qualified mechanic or dealership as soon as possible for diagnosis and repair.Ĭhevy’s 6-speed automatic transmission is having some serious problems and the automaker has issued a recall. There have also been reports of the transmission slipping out of gear while driving, which can lead to a loss of power and control. This can be very dangerous if it happens while you are driving. In most cases, the problem seems to be with the transmission shifting into higher gears too soon, which can cause the engine to rev up and then stall. However, there have been many reports of problems with this transmission, ranging from minor issues to complete failures. The Chevy 6 speed automatic transmission is a great transmission when it works properly.
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