1999 GMC Yukon Denali Engine cooling Problems
- Complaints
- 4about this part
- Share
- 15%of 27 total for the year
- Median mileage
- 94,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 1999 GMC Yukon Denali, 15% of the 27 complaints for this model year. Where a mileage was given, the median is 94,000 miles. 2 a fire, according to the filers.
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 service engine light came on in vehicle. I took vehicle to auto zone for a diagnostic check and it stated the pc-valve needed to be replaced and something about the emissions. I took the vehicle to the dealership and they stated the pistons melted on the heads and engine needed to be replaced.”
NHTSA complaint #10184268, filed 2007-03, 94,000 miles“My vehicle was serviced by this facility. I am the second owner and have owned this vehicle for less than 1 year. The orig. Owner purchases all vehicles from them for his construction company and maintains them regularly, as I have. I had the part and was told this was not thee problem. This vehicle had a 60,000 mile service brakes and new tires when I bought it. They charged me $1400 and 11 hrs. Labor for these repairs that should take no longer than 3. …”
NHTSA complaint #765675, filed 2002-08“Refusal to honor nationally advertised warranty program for repairs which resulted in a vehicle fire. While driving, the vehicle developed an oil leak. The vehicle was taken to the dealership and repaired so the consumer assumed. Six hours the vehicle was in flames. The consumer later learned, the fire was due to improper repairs by the dealership.”
NHTSA complaint #10003930, filed 2002-12“Gmc denali truck caught fire 302 miles after being repaired by a GM goodwrench mechanic in july 2002. The consumer was on a family vacation when the vehicle developed an oil leak.”
NHTSA complaint #10071867, filed 2004-04Related service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
Engine cooling: other model years
Other parts of the 1999 GMC Yukon Denali
12 complaintsElectrical system
3 complaintsTires
3 complaintsFuel system
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsAir bags
1 complaintsEquipment
1 complaintsExterior lighting
1 complaintsLatches, locks and linkages
1 complaintsBody and structure
1 complaints
← All problems reported for the 1999 GMC Yukon Denali
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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