2005 Chevrolet Trailblazer EXT 370 Engine Problems
- Complaints
- 4about this part
- Share
- 2%of 237 total for the year
- Median mileage
- 94,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2005 Chevrolet Trailblazer EXT 370, 2% of the 237 complaints for this model year. Where a mileage was given, the median is 94,500 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.
“My 05 trailblazer keeps shutting off while driving down a city street. In a 2-mile stretch it shut off 5 times with complete loss of steering control almost causing a serious accident. The vehicle trembled and then turned off. It has shut off on me while driving on three other occasions on previous years but it only occurred once and then stopped on those occasions.”
NHTSA complaint #10836804, filed 2016-02, 80,000 miles“Gas gauge, shoes it has a different amount of gas.. When turned off it can say its at 1/2 a tank, then when the engine is on it shows that car has 1 1/2 tanks of gas. Its not consistent and I always have to guess how much gas is in the car. Also the check light is always on. The gas tank has issues too.”
NHTSA complaint #10605384, filed 2014-06, 80,000 miles“Exhaust manifold developed a leak while driving on interstate 40 between nashville and jackson tn. Driver and passengers developed headaches and drowsiness before leak was discovered by sound during stop for gas.”
NHTSA complaint #10465761, filed 2012-07, 109,000 milesRelated service bulletins
- 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…
- 10211658May 2, 2022This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
- 10082869Aug 29, 2016This informational bulletin provides additional information on how to install pistons and suggest what tools to use.
- 10082822Aug 12, 2016This informational bulletin provides information on how to test a battery and what is needed to warranty a battery.
- 10082814Aug 2, 2016This informational bulletin provides information to gm dealers on the correct cleaning methods when cleaning engine gasket sealing surfaces.
- 10082820Aug 1, 2016This informational bulletins provides information on the intake manifold inspection/replacement after servere internal engine damage.
- 10201098Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- 10190503Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
Engine: other model years
Other parts of the 2005 Chevrolet Trailblazer EXT 370
101 complaintsFuel system
94 complaintsExterior lighting
15 complaintsVisibility (wipers, defrost, mirrors)
12 complaintsEngine cooling
10 complaintsVehicle speed control
8 complaintsAir bags
7 complaintsBody and structure
6 complaintsTires
5 complaintsTransmission and drivetrain
5 complaintsEquipment
4 complaintsLatches, locks and linkages
4 complaints
← All problems reported for the 2005 Chevrolet Trailblazer EXT 370
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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