2002 Chevrolet Trailblazer Ext engine and engine cooling problems
14 owner complaints filed with NHTSA name the engine and engine cooling on the 2002 Chevrolet Trailblazer Ext — 14% of all complaints for this model year.
What owners report
“Our 2002 chevrolet trailblazer loses power and the trouble lights flash including the service light and reduced power light come on. I have changed the 02 sensor, flushed the transmission, replaced spark plugs and had the emission system checked all to no avail. Our mechanic cannot isolate the…”
filed May 12, 2010
“My vehicle is a 2002 chevy trailblazer. I am writing today regarding the engine that has failed three times. There were multiple recalls on the vehicle including; air conditioning systems, back tail lights etc. The engine failed, and was replaced before 32k miles and again at 72k. Now on the third…”
filed Oct 29, 2009
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
06-06-01-019C · Service Bulletin/Repair Instructions · issued Mar 14, 2024This 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 or misfire, MIL with DTCs, and explains…
16-NA-383 · Service Bulletin/Repair Instructions · issued Mar 13, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the…
22-NA-074 · Service Bulletin/Repair Instructions · issued Feb 22, 2024
Engine and Engine Cooling problems in other Trailblazer Ext years
| Year | Reports | Share |
|---|---|---|
| 2006 Trailblazer Ext | 4 | 2% |
| 2004 Trailblazer Ext | 16 | 6% |
| 2003 Trailblazer Ext | 16 | 5% |
Other reported problem areas on the 2002 Chevrolet Trailblazer Ext
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.