One problem related to engine knocking noise has been reported for the 2011 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 GMC Yukon based on all problems reported for the 2011 Yukon.
The contact owns a 2011 GMC Yukon. While driving 55 mph, the engine stalled and a loud popping and knocking noise was heard. There were no warning indicators illuminated. The contact was able to restart the vehicle. The vehicle was not taken to a dealer, but was taken to an independent mechanic who diagnosed that the lifters in the engine were damaged and needed replacement. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 177,199.