2018 Chevrolet Silverado 1500 fuel/propulsion system problems
17 owner complaints filed with NHTSA name the fuel/propulsion system on the 2018 Chevrolet Silverado 1500 — 3% of all complaints for this model year.
What owners report
“Transmission started shifting weard contacted dealership. They state this unit is not under recall but it is an 6l80 and it is all over you tube and the internet about failures that start with the pm valve and/or the torque converter housing that is stamped but mounting brackets are welded to it…”
filed Jun 6, 2025
“There was fuel in the engine oil. Had to replace all of the injectors and the high pressure fuel pump. The shop I had it done at said this is known issue on these trucks - why isnt something being done?”
filed May 12, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Silverado 1500 years
| Year | Reports | Share |
|---|---|---|
| 2026 Silverado 1500 | 1 | 2% |
| 2025 Silverado 1500 | 6 | 7% |
| 2024 Silverado 1500 | 18 | 6% |
| 2023 Silverado 1500 | 28 | 8% |
| 2022 Silverado 1500 | 36 | 6% |
| 2021 Silverado 1500 | 24 | 3% |
| 2020 Silverado 1500 | 31 | 4% |
| 2019 Silverado 1500 | 30 | 3% |
| 2017 Silverado 1500 | 28 | 4% |
| 2016 Silverado 1500 | 26 | 3% |
| 2015 Silverado 1500 | 24 | 2% |
| 2014 Silverado 1500 | 27 | 2% |
Other reported problem areas on the 2018 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.