Stalling or Low Engine Idle Speed Due to Dirty Throttle Body on Hummer H2

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: (–)
4 model years affected: 2003, 2004, 2005, 2006
5 people reported this problem