Duramax Tcm Shortage - There are posts on duramax forums about checking the pins on the tcm harness since they tend to back out or get loose. At some point, that issue was addressed by gm with a better harness. I have a 2025 gmc duramax and the tcm. (transmission control module) has went bad and for a part that is not supposed to go bad why is there a national parts shortage. Unfortunately lml tcm's are the new ficm's. Dropped my lbz off at the mechanic yesterday to get 8 new bosch injectors and he told me that he has 3 lml's that. Do a very thorough. Dan has the 2025/2025 t87 tcm. Does not have a tcm for 2025. There are many available for earlier years and later years but for some reason the 2025/2025 are nowhere to. From 2008 thru 2025, chevrolet and gmc 2500 & 3500 trucks with the 6. 6 l duramax engine and allison 1000 transmission all used the same tcm; Its more like ats capitalizing on everyone's pain and inconvenience because of the shortage of replacenments. We at ats are not capitalizing on anything. Just found out from my mechanic my tcm is shot and need to replace it. Never mind about the class action lawsuit. If you are referring to the dreaded u 0101 code. If you're dealing with a tcm failure, you might wanna try grounding from the battery negative cable or the stud on the firewall to the aluminum on the heatsink of the tcm. From 2008 thru 2025, chevrolet and gmc 2500 & 3500 trucks with the 6. 6 l duramax engine and allison 1000 transmission all used the same tcm; So i work over at aamco and i've got a little trick to share with you all. If you're dealing with a tcm failure, you might wanna try grounding from the battery negative cable or. One challenge has been duramax tcmโs, or the lack thereof, and an insanely overpriced used market. Used tcmโs are going for $6,000+ because of a lack of supply. I'm the latest victim of the tcm failure: Hit bump while driving and got immediate service stabilitrak, u0101 code, tranny in limp mode, etc. My question is actually not around. I see the internet is full of bad tcm issues on gmc allision transmissions duramax engines. All the trucks that has this issue demands a recall.
There are posts on duramax forums about checking the pins on the tcm harness since they tend to back out or get loose. At some point, that issue was addressed by gm with a better harness. I have a 2025 gmc duramax and the tcm. (transmission control module) has went bad and for a part that is not supposed to go bad why is there a national parts shortage. Unfortunately lml tcm's are the new ficm's. Dropped my lbz off at the mechanic yesterday to get 8 new bosch injectors and he told me that he has 3 lml's that.