One problem related to engine 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.
This is second gm vehicle that I have had this problem it goes into reduced engine power often. Spent over 3,000. 00 trying to fix first vehicle and never did. Dealers don't know how to fix. This is dangerous,was passing a truck today on 2 lane road and veh went in to reduced power. Will not buy another gm product. . . .