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. Usually caused by a cracked solder joint. Only way to fix it short of replacement, is to reflow the solder. Happens most often at the chips or the connectors. The 1st generation x. There is not much you can do if it needs a module. You either pay the inflated prices for what is available, or you order one and play the waiting game. Xemodex. com is repairing. Dealer said they cannot get the replacement part. From reserch it appears the part number is: Anyone have an idea where i might locate the part? 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;
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.