2005 Chevrolet Trailblazer Engine cooling Problems
- Complaints
- 44about this part
- Share
- 3%of 1,466 total for the year
- Median mileage
- 54,550miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 44 complaints about the engine cooling of the 2005 Chevrolet Trailblazer, 3% of the 1,466 complaints for this model year. Where a mileage was given, the median is 54,550 miles. 3 of these say a crash was involved and 3 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“After waiting at a stop sign or stop light for a short period of time as you go to accelerate the rpms of the motor drop of by 100 to 200 then pick up. On some occasions the vehicle will stall leaving me in the middle of an intersection trying to start my car. I have spent almost $2000 diagnosing this problem with no solution in sight.”
NHTSA complaint #10447703, filed 2012-02, 55,000 miles“We were driving on interstate 94 in north dakota and we heard a pop. By the time we pulled over there were flames up to the window on the drivers door. We quickly got out. Vehicle is a total loss. This should not happen. Date of accident was 10/31/2014.”
NHTSA complaint #10652832, filed 2014-11, 110,000 miles“Burning smell coming from the A/C. Speed 4 and 5 both quit and now the whole thing has stopped working. This will be the third time is has been replaced and the dealer I take it to tell me this is a common problem on 2005 chevy trailblazers. Blower motor resistor is burnt out and the harness (which would cost about $200). They said that this was another common problem for this car model.”
NHTSA complaint #10321155, filed 2010-03, 54,000 miles“I have had my water pump replaced twice in that last 1.5 years. The first time was covered under warranty but the next time about 10 month the dealership claim it didn't work again. Just today 12/12 I went to drive to work after letting my car warm up for 5 minutes I decided to turn the heat on and nothing came out now I have to call and see if anyone can look my auto. Worse brand new auto that I have had.”
NHTSA complaint #10295450, filed 2009-12, 49,000 miles“I bought my 2005 Trailblazer the same year with 19+k miles. I started having it stall on me around 30k miles. I took it to hayward, ca chevy dealership because it was still under warranty. They said that they found nothing. I took in again because the engine light came up and they said the problem was the light only but, that's the light that would flash when it stalls. I took the car back in several times for the same situation. …”
NHTSA complaint #10292159, filed 2009-11, 30,000 milesRelated 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…
- 10250347Feb 2, 2024This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10245395Nov 6, 2023This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing…
- 10244273Oct 6, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 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…
- 10239101Jun 30, 2023This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
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 2005 Chevrolet Trailblazer
617 complaintsFuel system
611 complaintsExterior lighting
140 complaintsVehicle speed control
76 complaintsAir bags
70 complaintsTransmission and drivetrain
51 complaintsVisibility (wipers, defrost, mirrors)
45 complaintsOther or unknown
32 complaintsEngine
30 complaintsBrakes
29 complaintsBody and structure
27 complaintsEquipment
21 complaints
← All problems reported for the 2005 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