hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
54,360 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.

2003 GMC Envoy fuel system problems

fuel system problem

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2003 GMC Envoy Owner Comments

problem #5

Mar 032014


  • 137,000 miles


The contact owns a 2003 GMC Envoy. The contact stated while driving approximately 30 mph, the check engine light would illuminate and the vehicle would stall on numerous occasions. The vehicle was taken to an independent mechanic who replaced the fuel pump. The repairs did not remedy the failure. The independent diagnosed that the fuel tank needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The VIN was unavailable. The approximate failure mileage was 137,000.

- Boxborough, MA, USA

problem #4

Feb 092008

Envoy 4WD 6-cyl

  • Automatic transmission
  • 72,800 miles
We smelled gas fumes and was losing fuel out of the top of gas tank. The fuel tank was removed and we found gas standing on top of the tank. We found the fuel pump had rusted and the metal lines coming out of the pum was leaking. We order a new pump and filter installed them and put fuel tank back in truck. Now it is ok no fumes or leaks.

- Franklin, KY, USA

problem #3

May 192007

Envoy 4WD 6-cyl

  • Automatic transmission
  • miles
Smelled fuel for several weeks. It gradually got worse, from just smelling it when I was outside the vehicle to smelling inside. Took to GM dealership in town. The dealership replaced the fuel sending unit. It had corroded to the point that when fuel was pumping it pumped fuel onto the top of the tank. $750 was the bill.

- Columbiana, OH, USA

problem #2

Mar 012007

Envoy 6-cyl

  • Automatic transmission
  • 62,000 miles
Fuel pump module (fuel sending unit) corrodes and leaks fuel. And give faulty reading at the gas reading gauge. Not able to check if tank is empty.

- Norwalk, CA, USA

problem #1

Nov 272002

Envoy 4WD

  • Automatic transmission
  • miles
I bought a 2003 Envoy XL 11 days before the incident. We went into a restaurant, came back out after eating and the car would not start. I was 150 miles away from home. The car had less than 1000 miles on it and had to be towed away. I had to leave the car, get a rental (which was paid for), and was told it was the fuel pump, which the dealer stated they had never had happen before. I told the dealer I was not comfortable with that car, but was told this was a unheard of problem.

- Plymouth, MA, USA

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