Car Problem Reports

GMC Yukon XL Denali Stalling or Low Engine Idle Speed Due to Dirty Throttle Body

GMC Yukon XL Denali Problem
13 Reports
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Model Years Affected: 2001, 2002, 2003, 2004, 2005, 2006

Average Mileage: 109,481 mi (62,226 mi - 145,700 mi)


A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern.

  •  Rookie

    Truck idles really low, will stall sometimes when I make a slow turn

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  •  Rookie

    The vehicle would stall at idle. First thought it was an alternator problem since the alternator would drop to zero and the vehicle would stall. Put in new alternator. Same problem. Had throttle body cleaned by shop. Problem solved.

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