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EnginePart report

2003 GMC Sonoma Engine Problems

Complaints
1about this part
Share
3%of 39 total for the year
Median mileage
92,984miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine of the 2003 GMC Sonoma, 3% of the 39 complaints for this model year. Where a mileage was given, the median is 92,984 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.

“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

Related service bulletins

Engine: other model years

YearComplaintsShare of year
200313%
200111%
200011%
199711%

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
Fuel system
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

← All problems reported for the 2003 GMC Sonoma

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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