1994 GMC C1500 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 4%of 25 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 1994 GMC C1500, 4% of the 25 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.
“The rear main seal is leaking along with with the seal around the transmission. I also believe the valve cover gaskets are leaking too. I have been told that the rear main seal has been a problem with these trucks. I leaved in an apartment for 3 years after I purchased my truck. It was not until I bought my house that I realized this problem which problem had been a problem for a long time. I was just wondering if their was anything that the dealer is responsible for at this point or am I sol?”
NHTSA complaint #719067, filed 2000-02Related service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
Engine cooling: other model years
Other parts of the 1994 GMC C1500
7 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsTransmission and drivetrain
5 complaintsSeat belts
3 complaintsBrakes
2 complaintsElectrical system
1 complaintsFuel system
1 complaints
← All problems reported for the 1994 GMC C1500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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