How does a GMC Duramax Transmission Control Module work?

Mine’s an ’11. It was starting to freak out a little here and there. Symptoms were rough shifts, wouldn’t down shift to 5th from 6th on the freeway when trying to pass, and occasional slipping. It just gave out on me completely on the freeway and locked in 5th gear. As you said, no manual shift and lost the gear indicator on the DIC.

Are there any Duramax parts for a Chevy truck?

Diesel Power Products has the parts for your GMC or Chevy Truck! General Motors made some HUGE waves in the diesel market in 2001 with the release of the first Duramax powered Chevrolet and GMC’s. Previous to the Duramax, their 6.2L and 6.5L offerings faltered behind the Powerstroke and Cummins offerings in terms of overall power and reliability.

What are the transmission specs for a Duramax Diesel?

Allison 1000 Specs & Ratios. The Allison 1000 has been the standard automatic transmission for the Duramax diesel since its inception in 2001.

When did the first Duramax diesel truck come out?

General Motors made some HUGE waves in the diesel market in 2001 with the release of the first Duramax powered Chevrolet and GMC’s. read more Diesel Power Products has the parts for your GMC or Chevy Truck! General Motors made some HUGE waves in the diesel market in 2001 with the release of the first Duramax powered Chevrolet and GMC’s.

What kind of transmission does GMC 2500 HD Duramax have?

Did the Trick ! On my way out of town one morning, my 2009 GMC 2500 HD Duramax went into “limp Mode” with check engine light and Stabilink light illuminated. The transmision would only stay in one gear so I had to turn around and head home.

Mine’s an ’11. It was starting to freak out a little here and there. Symptoms were rough shifts, wouldn’t down shift to 5th from 6th on the freeway when trying to pass, and occasional slipping. It just gave out on me completely on the freeway and locked in 5th gear. As you said, no manual shift and lost the gear indicator on the DIC.

Where did the 2002 Chevy Silverado 2500HD come from?

1st owner purchased on 04/25/02 and owned in PA until 10/30/03 • 2nd owner purchased on 10/30/03 and owned in PA until 04/06/11 • 3rd owner purchased on 04/06/11 and owned in WV until 03/29/21. 1st owner drove an estimated 0 miles/year • 2nd owner drove an estimated 9,080 miles/year • 3rd owner drove an estimated 5,523 miles/year.

Do you need a TCM to flash a Duramax?

My Duramax is back to its old self and runs great. As a side note: I was told by the Service Advisor that they require the TCM be installed in the vehicle in order to flash or program it to the vehicle. In other words, it is my understanding that you can’t just take the new TCM to the dealer to have it flashed off the vehicle.