2003 Chevrolet Silverado 1500 HD Engine Problems
- Complaints
- 3about this part
- Share
- 3%of 101 total for the year
- Median mileage
- 148,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine of the 2003 Chevrolet Silverado 1500 HD, 3% of the 101 complaints for this model year. Where a mileage was given, the median is 148,000 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.
“Several of the exhaust manifold bolts have snapped/sheared causing exhaust leaks between the exhaust manifold and exhaust port on the cylinder head. I'm learning that this is a common issue that has gone unaddressed by the manufacturer, but is clearly an emissions and functionality issue. Please help in holding the manufacturer accountable for this apparent mechanical defect. As of now, they offer no assistance in repairing the issue.”
NHTSA complaint #11155467, filed 2018-12, 174,000 miles“Ok the problem I'm about to state is a huge problem with the 2003 1500 hds since they where new and chevy has had several complaints over the years with a refusal to repair. The throttle actuator control is what the pedal sensor tells to move the throttle body. …”
NHTSA complaint #10629944, filed 2014-09, 148,000 miles“Lost power to engine while driving down the interstate highway. Fault on dash showed (reduced engine power). Pulled to shoulder of highway and tried to restart engine to no avail. After sitting for about 5 minutes engine started and check engine light stayed on for a few days. Since that time I have replaced the throttle position sensor and have still been having the same problem for the past 2 years. It will sometimes drive for a few days without any problem, but some days it will occur 10 or more times in a day. …”
NHTSA complaint #10544977, filed 2013-09, 110,250 milesRelated service bulletins
- 11012907Dec 18, 2024This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 11010544Oct 7, 2024This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 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).
- 10178387Jul 27, 2020This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller…
- 10176645May 28, 2020This information bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
- 10176326May 21, 2020This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10176607May 8, 2020This technical 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…
- 10173398Feb 28, 2020This diagnostic tip provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10167437Oct 14, 2019This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the…
Engine: other model years
Other parts of the 2003 Chevrolet Silverado 1500 HD
49 complaintsElectrical system
30 complaintsSteering
9 complaintsEngine cooling
7 complaintsFuel system
6 complaintsTransmission and drivetrain
4 complaintsVehicle speed control
3 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsSeats
2 complaintsAir bags
1 complaintsForward collision avoidance
1 complaints
← All problems reported for the 2003 Chevrolet Silverado 1500 HD
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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