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: 6.5 1500 Turbo Diesel Jerks/bucks On Deceleration collint1 09-22-2009, 05:30 PM Help my 1996 Chevy 1500 6.5 Turbo automatic Truck jerks and bucks upon deceleration and on decline. It also does it when you have it on cruise control and the only way to stop it is to accelerate or brake. Please help me I'm lost on this one! OTHER THAN THAT ITS FINE BLOWS A LITTLE BLACK SMOKE UNDER HEAVY ACCELERATION Bison 09-23-2009, 12:07 AM could be TCC lock kicking in and out in the tranny. Any Codes? mpm 09-23-2009, 07:43 PM Just had the same problem with my 1996 sub.Turned out to be a shop rag under fuel filter that the stealer left there when the last worked on it. No fuel fuel filter. Check for codes PMD or TCC in trans Good luck and dont get frustrated. | ||