These issues are not common, but they may occur. Also, there are problems with the stator support tube or the liner developing cracks.
#6l80 transmission crack
Alternatively, you could have the pump machined, which would allow you to fix the updated rings.ĭepending on where the crack develops, the crack may lead to clutch failure, mainly to the 4-6-5 clutches. Therefore, you may be required to replace the pump entirely. However, the updated design does not fit the earlier design pumps.
#6l80 transmission update
General Motors came up with an update for the seal rings on the support to curb the problem. The result was mostly a slipping or delayed engagement that went into reverse. The units that came out earlier had issues with the ring’s design, resulting in leaks mostly during cold operation. These cover the feed oil circuits for the 3-5-R and 1-2-3-4 clutches. On the back of the stator support, there are seal rings. You should pay close attention to your stator tube cracks and sealing rings, but that’s pretty hard to do considering they’re on the inside of your transmission. Stator Support Issues (Failed Seals and Cracking)
#6l80 transmission install
6L80 transmission rebuilders will now install an updated version of the 6L80 clutch drum to resolve the problem accordingly. If that doesn’t happen first, another crack somewhere else on the clutch typically does. This becomes a short-term solution for a long-term problem as more problems will arise later on when the welds slowly weaken and fail. The result of the crack is usually a 3-5-R clutch issue and failure. General Motors also updated the housing to resolve the issue but this is only on the most recent version of the gearbox.Īnother significant problem is a crack that affects the drum weld. 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. This will result in 1-2-3-4 application problems. The housing’s inner diameter develops a crack and may break away from the accommodation. This is, however, not as common as the cracking of the piston itself. Therefore, it will be wise to update the piston to the latest designs.Īlso, the piston housing may crack. The piston typically gets cracks that result in clutch failure. Issues with the 1-2-3-4 pistons are common in 6L80 transmissions. The 6L80 has had a load of transmission problems, some of which directly inhibit drivability. What Are Some of the Common Issues with 6L80 Transmission? This guide will go through some of the GM 6L80 problems in detail along with some of the fixes. However, some design flaws of the GM 6L80 led to various transmission issues which have been presenting themselves over the last 5 years or so. The gearbox was created to manage a maximum torque rating of up to 650 lb-ft from some of the most significant engines GM had to offer. The 6L80 has unique operations, such as an advanced computer controller constructed into the valve body and a direct clutch to clutch shifting. It was designed for both AWD/4WD and RWD General Motors applications. General Motors originally manufactured this transmission. The application use of the 6L80 transmission has been extensive over the years.
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