EnginePart report
2003 GMC Denali Engine Problems
- Complaints
- 1about this part
- Share
- 3%of 32 total for the year
- Median mileage
- 75,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2003 GMC Denali, 3% of the 32 complaints for this model year. Where a mileage was given, the median is 75,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Related service bulletins
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10211658May 2, 2022This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
- 10082869Aug 29, 2016This informational bulletin provides additional information on how to install pistons and suggest what tools to use.
- 10082814Aug 2, 2016This informational bulletin provides information to gm dealers on the correct cleaning methods when cleaning engine gasket sealing surfaces.
- 10201098Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- 10190503Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
Engine: other model years
Other parts of the 2003 GMC Denali
Brakes
7 complaintsElectrical system
6 complaintsSteering
5 complaintsVehicle speed control
5 complaintsTransmission and drivetrain
3 complaintsElectronic stability control
2 complaintsEngine cooling
2 complaintsExterior lighting
2 complaintsAir bags
1 complaintsEquipment
1 complaintsFuel system
1 complaintsSeat belts
1 complaints
7 complaintsElectrical system
6 complaintsSteering
5 complaintsVehicle speed control
5 complaintsTransmission and drivetrain
3 complaintsElectronic stability control
2 complaintsEngine cooling
2 complaintsExterior lighting
2 complaintsAir bags
1 complaintsEquipment
1 complaintsFuel system
1 complaintsSeat belts
1 complaints
← All problems reported for the 2003 GMC Denali
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