If it s a 4x4 all of the classic duramax trucks from 01 07 5 have the issue.
2006 chevy duramax efi live.
Below you will find efilive tuning in multiple forms.
Back to 2006 2007 chevy gmc 6 6l lly lbz duramax programmers chips tuners we ve said it before and we ll say it again the best bang for the buck for increasing fuel economy and torque in your 6 6l gm duramax is a diesel tuner or programmer.
Anyways below is a link to the fix and on the bottom left side of our site is 13 pages of instructions that shows the problem and how to fix it.
From 98 07 have the same issue.
Buy ppei efi live autocal by kory willis for 2001 2010 gm 6 6l duramax at alligator performance.
And if you have any other trucks all chevy and gmc trucks 1500 tahoe etc.
For those with an automatic transmission equipped duramax you have the option to add ppei s exclusive tcm transmission control module tuning that will deliver a crisp shift pattern optimized to work in tandem with their engine tuning calibration.