Stalling or Low Engine Idle Speed Due to Dirty Throttle Body on GMC Sierra 1500 HD

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.

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Average mileage: 120,000 (120,000–120,000)
6 model years affected: 2001, 2002, 2003, 2004, more2006, 2007
7 people reported this problem
1 person shared problem details
cleaned with spray cleaner made for mass air sensor
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