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Engine coolingPart report

2005 GMC Yukon Denali Engine cooling Problems

Complaints
4about this part
Share
8%of 49 total for the year
Median mileage
74,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine cooling of the 2005 GMC Yukon Denali, 8% of the 49 complaints for this model year. Where a mileage was given, the median is 74,000 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.

“2 bolts holding the manifold to the 6 l engine of my Yukon Denali 2005 are broken. There is consequently gas emission leak at the source, not complying to resource emission laws, potential damage to the catalysor. At the garage, extended warranty refused to cover the bolt and work (but the manifold is) one of the bolt can not be drilled by the outside (no space) and has to be remove by removing the head cover. I am looking at a 10 hours estimate of labor.”

NHTSA complaint #10347027, filed 2010-08, 68,000 miles

“I am one of the many reporting broken exhaust manifold bolts on my truck. I had 3 studs rattle out, 2 break off inside head gasket and only 1 remain in tact. Truck is in great condition otherwise and has had excellent service record. Only problem now it is costing me $2500 to pull engine and send it to a machine shop to have the final stud removed from head with only 170000 km's on it this is ludicrous. I am a very unhappy customer that this is not a recall as it happens to almost all of these trucks between 09 and 2007. …”

NHTSA complaint #10423460, filed 2011-08, 80,000 miles

“Ever since I bought it in oct 2004, I felt this jumping of the truck after I stopped and started to accelerate it would do this, I called in and they told me that maybe because it was new, it may be doing that , I took it in last week because the engine light was lit and there was a strange burning smell on , it and there was also the recall of the back seats, and a light sensor loose, it was returned to me after a few days, and they said that it was because the gas cap was loose? …”

NHTSA complaint #10142661, filed 2005-11, 12 miles

“1999 to present 4.8,5.3 5.7,6.0 liter engines from GM have inferior grade metal in the exhaust manifold bolts causing them to break. The vehicles will have exhaust leaks and false readings to the oxygen sensors.the exhaust leaks of raw exhaust gases in to the atmosphere translate to extra pollution into the atmosphere from all these vehicles . The other matter is that the computer on the vehicles isn't given the correct oxygen sensor reading because of the leaks ,either gas leaking out or air being drawn into the exhaust stream causing the premature failing of catalytic converters. …”

NHTSA complaint #10370722, filed 2010-12, 146,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201511%
200812%
200722%
200548%
200422%
200346%
200213%
200139%
1999415%

Other parts of the 2005 GMC Yukon Denali

Electrical system
19 complaintsTransmission and drivetrain
6 complaintsAir bags
4 complaintsBrakes
4 complaintsEquipment
4 complaintsFuel system
4 complaintsBody and structure
4 complaintsExterior lighting
3 complaintsSeats
3 complaintsElectronic stability control
2 complaintsEngine
2 complaintsSeat belts
2 complaints

← All problems reported for the 2005 GMC Yukon Denali

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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