Two problems related to vehicle shudder have been reported for the 2003 Chevrolet Trailblazer. The most recently reported issues are listed below.
Tl the contact owns a 2003 Chevrolet Trailblazer. While driving various speeds, the front end of the vehicle vibrated. The vibration was more pronounced while the engine was idling. Also, while ascending up a hill, the vehicle would not properly accelerate. The vehicle was taken to an independent mechanic who was unable to determine the cause of the failures. The mechanic replaced the motor mounts, control arms, and tension belt; however, the failures continued. The manufacturer and an unknown dealer were notified of the failures. The failure mileage was 177,000. The VIN was invalid.
We've noticed a vibrating sound after 2-5 minutes from starting our '03 blazer from cold start. It tends to increase after we've driven it for a while. I've noticed while I'm waiting to pick my wife up that this irritating sound and vibration intensifies. Whatever it is, it's not normal. Fter taking the vehicle to our dealer and providing them with the below NHTSA bulletin, we hoped to get our vehilcle fixed. Nhtsa 282674 bulletin 061903 bulletin date: June 2003 unusual vibration felt at idle or at very low rpm during parking lot manuevers. Also residence noise accompanying the vibration. Gms engineering dept at the dealer returned our t-blazer informing us that it is normal. I don't believe they did a thorough job in locating & fixing the problem. The engineering dept recommended the service dept test an '04 Trailblazer. Their response was that it was normal like the '03. Before picking up my vehicle, I tested the warmed up '04 t-blazer & didn't hear the same sound I hear in my vehicle. I don't understand how this vibrating sound can be normal when the following gm service website link . . . Read more...