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.


fairly significant
Typical Repair Cost:
No data
Average Mileage:
84,889 miles
Total Complaints:
2 complaints

Most Common Solutions:

  1. not sure (2 reports)
2004 GMC Envoy drivetrain problems

drivetrain problem

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2004 GMC Envoy Owner Comments

problem #2

Jul 172010

Envoy SLT 4.2L

  • Automatic transmission
  • 80,778 miles


just would think that GMC would do a recall and fix this so I would keep coming back when I buy a new suv etc.. they have lost my next 40,000 when I go buy a new suv again ! I understand that they all have complaints etc... but it's how they deal with it that will get me to send another 40,000 !! bye GMC !!

- , Hamilton, Ontario, Canada

problem #1

Oct 012009

Envoy ES 4.6L

  • Automatic transmission
  • 89,000 miles

2004 GMC Envoy has more abnormal noises than any other auto (9) I have owned. Recently I have noticed a clank under the vehicle when I have to slow down and then accelerate (example slowing to turn corner or curve). Now the vehicle has a steady humming sound when I accelerate. Help - any suggestions will be greatly appreciated. It has been unprofessionally suggested to be u-joint or rear end. If so, would that be covered under the drive train warrant?

- , Kansas City, MO, USA

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