2001 Chevrolet Trailblazer Engine cooling Problems
- Complaints
- 5about this part
- Share
- 25%of 20 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine cooling of the 2001 Chevrolet Trailblazer, 25% of the 20 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Consumer stated that while driving and without warning oil is leaking from the vehicle and causing the consumer to refill more then often. Cause unknown. Dealer notified. Ts”
NHTSA complaint #10003723, filed 2003-01“While driving ABS light came on. When applying brakes pedal went to the floor. Dealer contacted. The vehicle had gone through five red lights, intersections, and stop signs with no brakes and was unable to stop. Other problems were: the tires were out of round(all 4), there were no brake or tail lights, the engine surged, the speedometer fluctuated, there was a smoke and or smoky odor, the electronic brake control failed, the vehicle did not start, the brakes would lock when the vehicle was backed, and the battery died.”
NHTSA complaint #8004866, filed 2002-03Related service bulletins
- 10251887Mar 14, 2024This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 10251890Mar 13, 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…
- 10250775Feb 22, 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…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10234110Mar 17, 2023This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
- 10228888Dec 14, 2022This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or…
- 10227056Nov 9, 2022This 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…
- 10222796Sep 14, 2022This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 4 | 5% |
| 2022 | 2 | 2% |
| 2021 | 2 | 1% |
| 2008 | 12 | 6% |
| 2007 | 12 | 2% |
| 2006 | 24 | 2% |
| 2005 | 44 | 3% |
| 2004 | 39 | 4% |
| 2003 | 65 | 7% |
| 2002 | 143 | 12% |
| 2001 | 5 | 25% |
| 2000 | 2 | 8% |
Other parts of the 2001 Chevrolet Trailblazer
5 complaintsBrakes
4 complaintsExterior lighting
3 complaintsBody and structure
3 complaintsAir bags
2 complaintsElectrical system
2 complaintsOther or unknown
2 complaintsEquipment
1 complaintsTires
1 complaints
← All problems reported for the 2001 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology