One problem related to loud engine noise has been reported for the 2001 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 GMC Yukon based on all problems reported for the 2001 Yukon.
Consumer started vehicle early in the morning and heard a loud noise. After fifteen minutes when vehicle warmed up there was no noise. Dealer stated that this type of noise was common to any vehicle being started early in the morning. 2001 GMC Yukon xl denali experiences knocking during cold start up of the engine. The knocking last for about 15 minutes until engine is warmed up.