2001 Oldsmobile Alero Repair Question
Topics covered: Engine, Idle air control valve, Serpentine belt.
Mileage: 88,000 miles.
Mileage: 88,000 miles.
Asked on September 27, 2011
What causes low idle at stops (e.g. red lights)
My 2001 olds alero idles low (approx 300-500)and almost dies at red lights. A pepboys center said the car generates no codes when tested on the pepboys computer. They do not know the reason it passes the diagnostic test, but still idles low. Also, when idling low the serpentine belt chirps, but they said the belt is working properly.
Please help diagnose the problem.
joseph
Please help diagnose the problem.
joseph
Asked by jpozAnswer
Replied on September 27, 2011
The most likely part that is causing the problem is the Idle Air Control Valve, IACV. It controls the idle at low speeds and idle as the engine load increases.
When you replace this part, check for vacuum leaks as well.
