Four problems related to loud engine noise have been reported for the 2003 Chevrolet Trailblazer. The most recently reported issues are listed below.
My chevy Trailblazer has a loud sound when driving or idling. Its sounds like a dump truck. Have taken it to a mechanic and they have said that it is the fan clutch. I then had the fan clutch replaced and the sound continues.
2003 Chevrolet trail blazer makes a roaring sound while driving. The vehicle was taken to the dealer. The technician rode with the consumer in the vehicle and heard the noise as well. The technician checked everything but could not find anything wrong.
Consumer took vehicle to repair shop because of the following problems; rack and pinion failed twice/air conditioner malfunctioned twice/vehicle stalled at take off/ oil leak, and brake lights failed to operate properly. Also, vehicle made a loud noise on driver's side while driving.
Poor performance from engine causing the vehicle to not perform in a normal manner while driving. Intermittent no start problems, extremely poor fuel economy st times, excessive noise usually at start up. Very rough idle at times and very poor acceleration at times. This was experienced by the service manager at crowley Buick/olds during an oil change. The problem causes a safety issue as the vehicle does not accelerate normally. Gm has offered me an extended warranty after I was told a year ago that the vehicle was operating "normally" by a gm factory rep who looked at the vehicle. For the past year my wife has driven a vehicle with my 2 boys that does not operate properly. I have contact gm and have been told three times they would contact me. Other than "thank you" emails I have yet to speak with someone in authority at gm.