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

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: 135,476 (90,000–216,670)
5 model years affected: 2002, 2003, 2004, 2005, more2006
18 people reported this problem
Viewing 1 - 6 of 6 comments
STalling ,Erattic idle speed, Cleaned Throttle Body,Ok now
engine skip when idle on D
idling problem
Being worked on right now. ruff idle , close to stalling.
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).