2017年6月21日 · The ignition switch was free, the pressure switch wasn't awful, but if the pressure switch hadn't done it would have been TCM time, and that's $1200ish for the TCM (from GM), +400ish to get it flashed for my VIN. The Allison is apparently very finicky about the voltage it wants to operate off of.

2011-2016 Allison 1000 equipped vehicles. These TCM’s were combined with Duramax diesel and 8.1L Gas engines. Each has a different shift schedule that need to be programmed at time of purchase or by a competent GM electronics expert. We provide a …

2023年6月27日 · A repair solution for 2001-2005 trucks equipped with Allison 1000 transmissions is in the works and nearing completion at this time. Unfortunately, older 2006-2008 A40 TCM units disintegrate during disassembly due to the use of a super-soft gel-like substance that was originally intended to protect the unit.

tcm - gm & early allison (t14a) (my 2006 - 2008) can use for a40 tcm prior my09 in place of 29546675 (a46)

The DuramaxTuner Pre-Tuned Replacement TCM is a brand new and upgraded TCM for your stock 2009-2015 GM Duramax Allison 1000 A50 Transmission Control Module. Your new TCM will arrive pre-programmed for your VIN and includes our custom TCM Tuning.

2006-2009 Allison 1000 equipped vehicles. This TCM was combined with Duramax diesel and 8.1L Gas engines. 06 LLY, 06-07 LBZ, 07-10 LMM. Each has a different shift schedule that need to be programmed at time of purchase or by a competent GM electronics expert.

Background: In 2001 thru 2005, all Allison 1000 equipped vehicles, including motorhomes, have 6-speed capability, but the existing transmission control module (TCM) software limits to 5 speed. The 6th gear is disabled.

Through custom tuning these TCM we can achieve custom shift points with respect to vehicle speed and throttle position, as well as WOT shift points and RPM limits. In some applications including 4wd we can also set up the proper OS to work directly with either manual shift T-case or one of our custom standalone T-case controller harnesses.

The DuramaxTuner Pre-Tuned Replacement TCM is a brand new and upgraded TCM for your stock late 2015 and 2016 Allison 1000 T87 Transmission Control Module. Your new TCM will arrive pre-programmed for your VIN and includes our custom TCM Tuning.

This is a repair service for an Allison TCM (Transmission Control Module) found in Chevrolet and GMC trucks with 6.6L Duramax engines. The T14 and A50 TCM that controls the Allison 1000 transmission has a high failure rate most commonly seen in LMM & LML Duramax trucks.