One problem related to car stall has been reported for the 2004 GMC Canyon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 GMC Canyon based on all problems reported for the 2004 Canyon.
Notified jof defect by GMC that engine intake valve seats are subject to abnormal wear, possibly resulting in misfiring and rough engine idling. They did not issue a recall, merely advising owners to take car to dealer if problem occurs. I maintain this is a safety issue. What if the misfire ignites the air filter? what if the vehicle stalls in traffic? what about pollution and cafe issues?.