1998 Chevrolet Silverado 1500 engine and engine cooling problems
17 owner complaints filed with NHTSA name the engine and engine cooling on the 1998 Chevrolet Silverado 1500 — 5% of all complaints for this model year.
What owners report
“Exhaust manifold bolts breaking leaving studs in the heads, heating up engine compartments, releases carbon monoxide, affects o2 sensor and catalytic converter. Will not pass emissions in some states. Gm not standing behind this 1999-2008 issue. It is a safety issue and is expensive to fix. Gm…”
filed Feb 16, 2012
“1998 chevrolet, k1500,4x4, 5.7 vortec at about 40,000 miles had to have intake manifold gasket replaced, windshield wiper motor works and then doesn't,master cylinder has failed twice,d/s electric window works and then doesn't and rear turn signal housing and connection on right side keeps failing…”
filed Nov 9, 2006
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 1998 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.