One problem related to engine exhaust system has been reported for the 2004 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 GMC Yukon based on all problems reported for the 2004 Yukon.
Broken exhaust bolts on gm engines. This is a well known defect and failure on these engines and is part of the vehicle emissions systems. This is also a very serious safety defect, possible issues with this failure include; carbon monoxide poisoning and engine compartment fire.