1999 GMC Envoy Engine cooling Problems
- Complaints
- 1about this part
- Share
- 11%of 9 total for the year
- Median mileage
- 28,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 1999 GMC Envoy, 11% of the 9 complaints for this model year. Where a mileage was given, the median is 28,000 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.
“Oil leak is found on all Gmc envoys, cost for replace in seals, $300. Also bushings on doors go bad causing doors to fail to close. Cost to replace bushings $125 plus labor. Which can be a safety problem. I have 30,000 miles with oil leak and both door bushings gone bad on the driver and passenger door. Time of problem is when dealership notified me of the problem.”
NHTSA complaint #10043692, filed 2003-10, 28,000 milesRelated service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
- 10012703Feb 1, 2004Diagnostic information for intermittent vehicle no crank dead battery.
Engine cooling: other model years
Other parts of the 1999 GMC Envoy
3 complaintsTransmission and drivetrain
2 complaintsElectrical system
1 complaintsEquipment
1 complaintsExterior lighting
1 complaintsBody and structure
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 1999 GMC Envoy
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