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

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.

RepairPal Verified
Average mileage: 97,500 (60,000–145,000)
8 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007, 2011
11 people reported this problem
3 people shared problem details
2002 GMC Yukon Denali145,000
Erratic Idle and stalling. Cleaned throttle body and fixed the problem.
2001 GMC Yukon Denali110,000
Tractoin and check engine illuminate and the car speed and power goes down. I try to disconnect battery and both light went off, unfortunately it comes back later.
TROTTLE BODY HAD ISSUES THAT EFFECTED MY BRAKE SENSOR AS WELL..
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