One problem related to catalytic convertor has been reported for the 2004 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Tahoe based on all problems reported for the 2004 Tahoe.
I have been hearing a rattling sound underneath my car while driving. Also when I turn off the car, especially when the car has been driven for a while, I hear a popping noise, maybe from the muffler area. I was told today that the catalytic converter needs to be replaced. I bought the car new, so I don't understand how that could be already with only 85k on the car.