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.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


pretty bad
Typical Repair Cost:
Average Mileage:
110,210 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. had to replace the fan clutch 2x on this vehicle (1 reports)
2003 GMC Envoy cooling system problems

cooling system problem

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2003 GMC Envoy Owner Comments

problem #1

Nov 162013

Envoy SLT 4.2L I6

  • Automatic transmission
  • 110,210 miles


click to see larger images

fan clutch failure

This SUV has a serious problem with fan clutch failure, this is a very common and expensive problem with this vehicle. I have had to replace 2 fan clutches, the first one just failed and would run at a high level (roaring) would not slow down. The second unit failed with P1481 code, which is a wiring problem on the fan clutch ( see my picture) and it need to be replaced as well. GMC sure knows how to screw it customers! I won't be buying another GMC product that's for sure!

- , Danville, CA, USA

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