Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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2.0

hardly worth mentioning
Typical Repair Cost:
No data
Average Mileage:
112,688 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2002 GMC Sierra 2500 engine problems

engine problem

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2002 GMC Sierra 2500 Owner Comments

problem #1

Jan 292008

Sierra 2500 SLT 6.6L Diesel

  • Automatic transmission
  • 112,688 miles

A D V E R T I S E M E N T S

While idling in park or in gear the engine will pulsate up and down. Tach will range from 600 RPM to about 800RPM during pulsating problem, however sometimes it will idle normal. Engine is a 6.6L turbo diesel with aftermarket exhaust and hi-flow cone AFE filter. I just purchased truck recently. The engine is very strong, but it�s my first time owning a diesel and not sure what to expect, what�s normal or abnormal? I have had the truck fully serviced and everything checks out ok.

- , Athens, TN, USA

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