2002 Chevrolet Trailblazer Engine and Engine Cooling Problems
Owners have filed 143 complaints with NHTSA about engine and engine cooling problems on the 2002 Chevrolet Trailblazer, 12% of all complaints for this model year. Half of the reports with a mileage happened before 55,350 miles. The words owners use most often: “fan clutch” (28% of reports).
- 143engine and engine cooling complaints
- 55,350median miles at failure
- 6mention a crash
- 3mention an injury
- 0related recalls
- $1,150typical repair cost reported by owners
- 28%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Fan clutch: mentioned in 40 of 143 complaints (28%)
- Service engine: mentioned in 13 of 143 complaints (9%)
- Loud roaring: mentioned in 9 of 143 complaints (6%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical engine and engine cooling repair on the 2002 Chevrolet Trailblazer at $1,150, and half of them between $1,000 and $1,300.
Based on 15 NHTSA complaints about this problem alone that state a repair bill or quote (2004–2009), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do engine and engine cooling problems happen?
Based on 94 complaints that reported the odometer reading.
How serious are the reports?
Of 143 complaints, 6 mention a crash, 1 a fire, 3 an injury.
Chevrolet Trailblazer engine and engine cooling complaints by model year
| Model year | Engine and Engine Cooling complaints | Share of that year | Median miles |
|---|---|---|---|
| 2023 Trailblazer | 3 | 4% | 95,626 |
| 2022 Trailblazer | 2 | 2% | 62,500 |
| 2021 Trailblazer | 2 | 1% | 69,425 |
| 2008 Trailblazer | 12 | 6% | 58,000 |
| 2007 Trailblazer | 12 | 2% | 52,500 |
| 2006 Trailblazer | 24 | 2% | 56,000 |
| 2005 Trailblazer | 44 | 3% | 54,550 |
| 2004 Trailblazer | 39 | 4% | 36,000 |
| 2003 Trailblazer | 65 | 7% | 49,890 |
| 2002 Trailblazer | 143 | 12% | 55,350 |
| 2001 Trailblazer | 5 | 25% | — |
| 2000 Trailblazer | 2 | 8% | 19,450 |
| 1999 Trailblazer | 1 | 25% | — |
When owners reported it
Related recalls (0)
No safety recall lists engine and engine cooling for the 2002 Chevrolet Trailblazer. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
Tl* the contact owns a 2002 chevrolet trailblazer. The contact stated that transmission fluid was leaking onto the catalytic converter from the transmission line. The vehicle was taken to an independent mechanic for diagnosis. The technician stated the transmission cooler lines would have to be…
When my mechanic put my truck on the lift yesterday to change the water pump, he noticed that the frame is so rotted that he advised me not to drive it.and for who knows how long, my wife and myself, who are both disabled, have been driving this, putting ourselves and the public at risk. When i…
When i first purchased the vehicle a couple days later i noticed the steering columns ability to turn was very hard and making loud noises. I fought continuously with the dealership to fix the issue and finally after several attempts they agreed to fix it. Then 2 months later were driving my son to…
Frequently asked questions
Do all 2002 Chevrolet Trailblazers have engine and engine cooling problems?
No. NHTSA has 143 owner complaints about engine and engine cooling for the 2002 Chevrolet Trailblazer (12% of the 1,149 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2002 Chevrolet Trailblazer engine and engine cooling?
No recall currently lists engine and engine cooling for this vehicle.
At what mileage do engine and engine cooling problems start?
The median reported mileage is 55,350 miles: half of the reports with a mileage came before that.
How much does it cost to fix engine and engine cooling problems on the 2002 Chevrolet Trailblazer?
Owners report a typical cost of $1,150 (half paid between $1,000 and $1,300), from 15 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about engine and engine cooling problems on the 2002 Chevrolet Trailblazer?
The most frequent phrase is “fan clutch”, in 40 of 143 complaints, followed by “service engine” (13).
Other 2002 Chevrolet Trailblazer problems
- Power Train problems (310)
- Electrical System problems (181)
- Exterior Lighting problems (143)
- Air Bags problems (102)
- Fuel System, Gasoline problems (101)
- Visibility problems (100)
See all 2002 Chevrolet Trailblazer problems or engine and engine cooling problems across all Trailblazer years.