Stalling or Low Engine Idle Speed Due to Dirty Throttle Body on Chevrolet Avalanche 1500

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: 135,476 (90,000–216,670)
5 model years affected: 2002, 2003, 2004, 2005, more2006
16 people reported this problem
6 people shared problem details
STalling ,Erattic idle speed, Cleaned Throttle Body,Ok now
Being worked on right now. ruff idle , close to stalling.
engine skip when idle on D
Avalanche would start normally and run at low idle speed while engine was cold. After the engine warmed up, it would stall every time I took my foot off the accelerator. My mechanic, Gene, cleaned the throttle body and it's been running fine so far (two days, 50+ miles).
Stalls out at low speeds.
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