2007 Chevrolet Trailblazer Engine Problems
- Complaints
- 22about this part
- Share
- 3%of 732 total for the year
- Median mileage
- 90,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 22 complaints about the engine of the 2007 Chevrolet Trailblazer, 3% of the 732 complaints for this model year. Where a mileage was given, the median is 90,000 miles. 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My 2007 Trailblazer ss has a manifold exhaust leak. The bolts are broken on the left front of the head and back bolt of the head on both sides. We are getting exhaust gas in to the inside of the truck. This could cause carbon monoxide poisoning. To the driver in the vehicle, this is very serious condition.”
NHTSA complaint #11161056, filed 2018-12, 171,000 miles“I have a rare Trailblazer with a 5.3l v8. It is very low miles with 41000, oil changes every 3-4000 miles at GM dealerships. I am an ex diesel mechanic of 10 years. I could not believe it a year ago when the dealership stated: that 1 quart of oil used in 2000 miles was normal consumption. I have checked other sites and many others have the same issue with the 5.3l in the 1/2 tons and larger suvs that the motor is standard in. …”
NHTSA complaint #10555904, filed 2013-12, 41,000 miles“The vehicle vibrates heavily while in idle. The car will be in the drive position at a stop. The car acts as if it is about to stall out. Which presents a huge hazard with children in the car. We have replaced the engine mounts,spark plugs, coils, boots, intake flush and performed routine maintenance. I have read that numerous trailblazers have encountered the same issue with no resolution! My biggest fear is for a car to stall and an injury to occur a a direct result.”
NHTSA complaint #10746596, filed 2015-08, 170,000 miles“I was driving my 2007 Trailblazer home after a 150 mile trip to columbus and noticed oil spots on my driveway. I moved and parked the vehicle in another location where a large puddle of oil. Fell under the engine. I climbed underneath and saw transmission fluid dripping from the frame onto the ground. I called graham Chevrolet and was told not to drive as it would cause severe damage to the transmission resulting in a costly repair or replacement. …”
NHTSA complaint #10549613, filed 2013-10, 89,286 miles“While taking my kids to school this morning, the engine shutoff shut off with no indication at all. We were starting to slow down to turn the corner to head to the school when this incident occurred. We have had several components (battery, ignition switch, alternator, starter relay) changed out the fixed the engine light, but the engine continues to stall. I have seen over 500 other people with this same issue and have not seen anyone who has had it fixed yet.”
NHTSA complaint #10556761, filed 2013-12, 78,850 milesRelated service bulletins
- 11009531Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11007116Aug 6, 2024This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11007091Aug 5, 2024This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 11004761Jun 28, 2024This service 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…
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10242298Aug 10, 2023This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10211658May 2, 2022This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
- 10180695Aug 21, 2020This Technical bulletin provides a procedure to correct a condition of Active Fuel Management (AFM) Engine Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2…
- 10178949Jul 28, 2020This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC…
- 10178387Jul 27, 2020This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 42% |
| 2025 | 3 | 12% |
| 2024 | 9 | 25% |
| 2023 | 17 | 23% |
| 2022 | 17 | 15% |
| 2021 | 38 | 19% |
| 2009 | 2 | 7% |
| 2008 | 21 | 11% |
| 2007 | 22 | 3% |
| 2006 | 43 | 4% |
| 2005 | 30 | 2% |
| 2004 | 16 | 1% |
| 2003 | 15 | 2% |
| 2002 | 17 | 1% |
Other parts of the 2007 Chevrolet Trailblazer
311 complaintsElectrical system
200 complaintsExterior lighting
151 complaintsVisibility (wipers, defrost, mirrors)
82 complaintsAir bags
27 complaintsSteering
23 complaintsElectronic stability control
17 complaintsOther or unknown
16 complaintsTransmission and drivetrain
15 complaintsBrakes
12 complaintsEngine cooling
12 complaintsBody and structure
11 complaints
← All problems reported for the 2007 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