2008 Chevrolet Trailblazer Engine cooling Problems
- Complaints
- 12about this part
- Share
- 6%of 193 total for the year
- Median mileage
- 58,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 12 complaints about the engine cooling of the 2008 Chevrolet Trailblazer, 6% of the 193 complaints for this model year. Where a mileage was given, the median is 58,000 miles.
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.
“With only 55,000 miles, the exhaust manifold cracked. Seeing all of the complaints online and talking to my mechanic, this seems to be a default part. Chevy should be recalling these. My mechanic had to order the part through the dealer and they had the replacement manifold in stock. Exhaust manifolds are not normally stock items unless there is a real high need to replace them.......”
NHTSA complaint #10441026, filed 2011-12, 55,000 miles“Hello, I'm sure you've heard many complaints of cracked exhaust manifold on gmc SUV's. I have one and have been reading way too many posts online about the same issue. This is caused by what 2 mechanics say is a bad design and cheap parts. For a $30+ truck, this is not acceptable. I have a 2008 Trailblazer lt, with 50k miles. The cost to fix is averaged at around $600-$700!!!!! Many have to try and tackle this project on their own since that type of money isn't really just laying around for most people and what happens is broken bolts and then a whole separate issue. …”
NHTSA complaint #10351290, filed 2010-08, 50,000 miles“The GM ls2 engine installed in the Trailblazer ss models has a known oiling issue which causes the engine to be starved for oil and thus, spins a rod bearing. Being that the Trailblazer ss is a limited production vehicle, GM hasn't lifted a finger to recall or repair this design flaw. The problem only exists in the Trailblazer ss (not corvette or gto to my knowledge) due to a problem with the oil pan.”
NHTSA complaint #10364025, filed 2010-11, 56,000 miles“2008 chevy Trailblazer cracked exhaust manifold at 62,000 miles quoted that the repair would be $600-700. After doing research there are many occurrences of this problem when will there be a recall on this bad manifold???”
NHTSA complaint #10405355, filed 2011-06, 62,000 miles“2008 Chevrolet Trailblazer ls with 63,000 miles developed a cracked exhaust manifold. I have read several similar incidents online. Gm should look into a recall.”
NHTSA complaint #10363959, filed 2010-11, 63,000 milesRelated service bulletins
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- 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…
- 10250505Feb 7, 2024This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 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…
- 10242061Aug 7, 2023This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
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 2008 Chevrolet Trailblazer
65 complaintsAir bags
33 complaintsEngine
21 complaintsExterior lighting
17 complaintsBrakes
15 complaintsSeat belts
12 complaintsSteering
11 complaintsElectronic stability control
10 complaintsTransmission and drivetrain
10 complaintsOther or unknown
9 complaintsFuel system
8 complaintsVehicle speed control
8 complaints
← All problems reported for the 2008 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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