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Fuel systemPart report

2003 GMC Sonoma Fuel system Problems

Complaints
4about this part
Share
10%of 39 total for the year
Median mileage
64,674miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the fuel system of the 2003 GMC Sonoma, 10% of the 39 complaints for this model year. Where a mileage was given, the median is 64,674 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 filler neck regularly allows gasoline to overflow while filling the gas tank. I have taken the vehicle to the dealer twice and contacted the manufacturer. General motors and the dealer told me there is nothing that can be done. The fuel filler neck has been narrowed to comply with emission standards. I owned a similar vehicle prior to this and never encountered this problem. Present vehicle is 2003 Sonoma crew cab pickup, prior vehicle 2000 Gmc jimmy. I was told to stop the flow of gas, remove hose from filler neck, wait and then resume filling gas tank. …”

NHTSA complaint #10037255, filed 2003-09, 12,500 miles

“The contact owns a 2003 Gmc Sonoma. The contact stated while he drove 73 MPH the vehicle stalled without warning. The contact was able to coast onto the emergency lane. The local mechanic performed a diagnostic test and was unable to locate a failure code. The vehicle was taken to a second dealership for additional inspection that advised that the spark plug and the fuel cap needed to be replaced. The spark plug and fuel cap was replaced. The manufacturer was not made aware of the failure. The failure and current mileage was 92,984. Updated 07/28/14 ma updated 07/29/14”

NHTSA complaint #10577113, filed 2014-04, 92,984 miles

“The contact owns a 2003 Gmc Sonoma. While driving approximately 45 MPH the check engine warning light illuminated on the instrument panel. The vehicle was taken to an authorized dealer for inspection. The technician stated the failure was contributed to the fuel system; tank assembly filler pipe. The repair was performed on the vehicle at the cost of $1,959.00. The failure mileage was 54,348. The current mileage was 50,352. Updated 11/17/09 the dealer discovered road salt had eaten around the fuel module. The fuel tank was replaced and the fuel pump was warped. Updated 11/1/8/09”

NHTSA complaint #10290112, filed 2009-10, 54,348 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2003410%
200235%
200167%
200054%
199935%
199832%
199787%
199664%
1995115%
199473%
199228%

Other parts of the 2003 GMC Sonoma

Brakes
7 complaints
Body and structure
6 complaints
Latches, locks and linkages
5 complaints
Transmission and drivetrain
5 complaints
Equipment
4 complaints
Seats
3 complaints
Tires
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Air bags
2 complaints
Suspension
2 complaints
Vehicle speed control
2 complaints
Electrical system
1 complaints

← All problems reported for the 2003 GMC Sonoma

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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