2003 Chevrolet Silverado 1500 engine and engine cooling problems
20 owner complaints filed with NHTSA name the engine and engine cooling on the 2003 Chevrolet Silverado 1500 — 2% of all complaints for this model year.
What owners report
“The check engine light is on and the oil reader is all the way to the right and while driving on the highway the reduced speed warning comes on the engine reduces speed and cannot go over 30 in a 30 mile radius it has done this to me 4 times just this morning to work. *tr”
filed Dec 15, 2016
“Exhaust manifold bolts breaking off leaving studs in the heads (4) my late 2002 chevy z71 developed an exhaust leak and the catalytic converter started banging at idle or after parked. Engine has black exhaust on the head where we found the main leak. So, carbon monoxide has been coming into the…”
filed Feb 16, 2012
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other Silverado 1500 years
| Year | Reports | Share |
|---|---|---|
| 2025 Silverado 1500 | 1 | 1% |
| 2024 Silverado 1500 | 18 | 6% |
| 2023 Silverado 1500 | 26 | 7% |
| 2022 Silverado 1500 | 24 | 4% |
| 2021 Silverado 1500 | 55 | 7% |
| 2020 Silverado 1500 | 24 | 3% |
| 2019 Silverado 1500 | 47 | 4% |
| 2018 Silverado 1500 | 9 | 2% |
| 2017 Silverado 1500 | 3 | 0% |
| 2016 Silverado 1500 | 1 | 0% |
| 2015 Silverado 1500 | 12 | 1% |
| 2014 Silverado 1500 | 9 | 1% |
Other reported problem areas on the 2003 Chevrolet Silverado 1500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.