2003 GMC Envoy 360 Fuel system Problems
- Complaints
- 3about this part
- Share
- 38%of 8 total for the year
- Median mileage
- 125,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the fuel system of the 2003 GMC Envoy 360, 38% of the 8 complaints for this model year. Where a mileage was given, the median is 125,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Fuel pump module corrosion causing leaking fuel and fuel vapors from the top of the fuel tank. This is due to a design defect as the fuel pump module sits lower than the highest point of the fuel tank and moisture and debris accumulate on top of the fuel pump module. The top of the module is not manufactured with appropriate rust-proofing measures and the materials used leave it prone to rusting and failure, compromising the seal and allowing fuel to escape from the tank. This poses a fire hazard, especially if fuel is able to reach heated exhaust pipes, etc. …”
NHTSA complaint #10789534, filed 2015-11, 125,000 miles“The contact owns a 2003 Gmc ENVOY 360. The contact stated that while driving at 35 MPH, the check engine and reduce power warning lights illuminated. The contact also stated that the accelerator pedal failed to respond. The vehicle was restarted. The vehicle was taken to a dealer where it could not be diagnosed. No repairs were done. The manufacturer was not made aware of the failure. The failure mileage was 105,000.”
NHTSA complaint #10786526, filed 2015-10, 105,000 miles“The contact owns a 2003 Gmc ENVOY 360. While driving various speeds, the vehicle emitted a fuel odor from the rear of the vehicle. The fuel tank leaked fuel no matter how much fuel was in the tank. The contact took the vehicle to the dealer, but it was not diagnosed nor repaired. The contact notified the manufacturer who stated that the failure was covered under warranty; however, the contact's vehicle did not meet warranty guidelines. The approximate failure mileage was 153,802.”
NHTSA complaint #10836610, filed 2016-02, 153,802 milesRelated service bulletins
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10171878Jan 2, 2020This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended…
Fuel system: other model years
Other parts of the 2003 GMC Envoy 360
3 complaintsAir bags
2 complaintsExterior lighting
1 complaintsTransmission and drivetrain
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2003 GMC Envoy 360
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology