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Engine coolingPart report

2003 GMC C4500 Engine cooling Problems

Complaints
1about this part
Share
17%of 6 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2003 GMC C4500, 17% of the 6 complaints for this model year.

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.

“Vehicle experienced sudden stalling at various speeds when on the road. Taken to the dealer 10 times for checkup, but the cause was still undetermined.”

NHTSA complaint #10114889, filed 2005-03

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2003117%

Other parts of the 2003 GMC C4500

Brakes
2 complaints
Transmission and drivetrain
2 complaints
Exterior lighting
1 complaints
Tires
1 complaints

← All problems reported for the 2003 GMC C4500

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