Stalling or Low Engine Idle Speed Due to Dirty Throttle Body on GMC Sierra 2500 HD
Problem overview
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.
10 people reported this problem
1 commentGMC Sierra 2500 HD vehicles with this problem
7 model years affected
Average mileage: 186,262 miles
(112,525 - 260,000)
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