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.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
81,740 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 GMC Envoy engine problems

engine problem

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2008 GMC Envoy Owner Comments

problem #4

Jun 032014


  • 101,960 miles


Our 2008 GMC Envoy kept on getting louder and louder as time went on and when I went to check it out I found that the exhaust manifold had a crack in it about 3.5 inches long. If feel that this should be a recall do to I changed 3 od them in other GMC Envoy in the last 6 months. I own a state inspection repair garage in Pennsylvania.this is a very poor layout by GM. Also the secondary air pump on this same vehicle is a command problem. And the wiper spray nozzle is also another command poor design.

- Meadville , PA, USA

problem #3

Sep 172013


  • 94,000 miles
I started my vehicle in the am and it made a loud muffled noise. Took it to the mechanic and he showed me a picture of a crack in the xhaust manifold. I looked online and saw recalls for other years and models for GMC and Chevy. I think the 2008 Chevy Envoy should be included. It seems to be that the manifold is defective.

- San Diego, CA, USA

problem #2

Feb 142012


  • 72,000 miles
The contact owns a 2008 GMC Envoy. The contact stated that the vehicle stalled. The vehicle was taken to the dealer, who advised the contact that because the air pump was located under the vehicle, it was left exposed to debris, which had built up in the air pump over time. The vehicle was not repaired. The contact called the manufacturer and filed a complaint. The failure mileage was 72,000.

- Youngstown, OH, USA

problem #1

Nov 122012


  • 59,000 miles
The contact owns a 2008 GMC Envoy. The contact stated that the check engine warning lamp illuminated on the instrument panel. The vehicle was taken to the dealer and they stated that the seal that was on top of the fire wall was damaged. As a result, the water was sipping into the engine compartment and was getting on the coil packs and the plugs. The vehicle was not repaired. The manufacturer was not notified. The failure mileage was 59,000. The VIN was unavailable.

- Cichester, NY, USA

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