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
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Viewing 1 - 6 of 6 problem details
STalling ,Erattic idle speed, Cleaned Throttle Body,Ok now
2005 Chevrolet Avalanche 1500 144,344 mi,
idling problem
Being worked on right now. ruff idle , close to stalling.
2003 Chevrolet Avalanche 1500 102,000 mi,
Stalls out at low speeds.
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).