2002 Chevrolet Trailblazer engine problems
17 owner complaints filed with NHTSA name the engine on the 2002 Chevrolet Trailblazer — 1% of all complaints for this model year.
What owners report
“The car rmp goes high when accelerating it's a common problem with the cooling fan which the company is aware of it but aren't held reliable! It's a shame that nhtsa hade many complaining about the issue but aren't holding the manufacturer responsible this could of hade me and my family in an…”
filed Aug 31, 2022
“Electrical under dash shorting out. Causing accessory plug to shoot sparks as well as causing dash lights to go out, and front panel to stop working. Ac electrical quit working after. 4wheel drive shifts randomly in and out of 2 and 4 wheel drive, causing the transmission to get stuck in neutral…”
filed Oct 10, 2019
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This 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 misfire, MIL with DTCs, and explains how…
16-NA-383 · Service Bulletin/Repair Instructions · issued Jun 28, 2024
Engine problems in other Trailblazer years
| Year | Reports | Share |
|---|---|---|
| 2025 Trailblazer | 3 | 16% |
| 2024 Trailblazer | 9 | 28% |
| 2023 Trailblazer | 14 | 23% |
| 2022 Trailblazer | 16 | 15% |
| 2021 Trailblazer | 36 | 19% |
| 2009 Trailblazer | 2 | 7% |
| 2008 Trailblazer | 21 | 11% |
| 2007 Trailblazer | 22 | 3% |
| 2006 Trailblazer | 43 | 4% |
| 2005 Trailblazer | 30 | 2% |
| 2004 Trailblazer | 16 | 1% |
| 2003 Trailblazer | 15 | 2% |
Other reported problem areas on the 2002 Chevrolet Trailblazer
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.