One problem related to catalytic convertor has been reported for the 2004 Chevrolet Blazer. The most recently reported issues are listed below.
My 2004 trailblazer had been in the maroone service dept 5 times during the first 27000 due to loss of power, engine stop on traffic light, and service engine soon light on. The last time was last week and the light is on again. I almost had accident on the turnpike trying to pass a car, car is not responding as necessary. I previously owner a Blazer, and a trailblazer and they were great. This truck is giving me a hard time, lost of time and confidence.
| Engine Exhaust System problems | |
| Engine Cooling System problems | |
| Catalytic Convertor problems | |
| Engine Shut Off Without Warning problems |