Engine And Engine Cooling Related Problems of the 2003 Chevrolet Trailblazer

Table 1 shows 21 common engine and engine cooling related problems of the 2003 Chevrolet Trailblazer. The number one most common problem is related to the engine and engine cooling (22 problems). The second most common problem is related to the cooling fan (17 problems).


Recently reported Engine And Engine Cooling problems of the 2003 Chevrolet Trailblazer

The Engine And Engine Cooling problem

Transmission doesn’t have 3rd or 4th gear. Vehicle was smoking under hood. Found out after buying it it has flood damage. Mechanic said there was water in the transmission when inspected. Vehicle needs catylic converter sensor and vehicle has bad ground wire.   Read details...

The Cooling Fan problem

2003 chevy Trailblazer. Consumer states problems with fan clutch the consumer stated once the rpm went up, the fan clutch would disengage and then sound normal. The fan clutch has been replaced twice.   Read details...

The Engine Cooling System problem

Thermostat has failed twice during long trips. This causes the engine to run hot or cold. I am on my third one and have concluded it must be a design defect. Failure of this component may cause the engine to fail and thus strand the driver.   Read details...


Engine And Engine Cooling related problems in other Chevrolet Trailblazer model year vehicles:



Fuel Economy of Trailblazer Vehicles
Trailblazer Service Bulletins
Trailblazer Safety Recalls
Trailblazer Defect Investigations