What happens when a car's idle motor fails?

1 Answers
Sanchez
07/29/25 1:32pm
When a car's idle motor fails, the following situations may occur: Irregular idle speed: One of the most common symptoms associated with a faulty air control valve is irregular idle speed. The idle air control valve is programmed to regulate and maintain the engine's idle speed at a constant rate. If the valve malfunctions or has any issues, it may cause the idle speed to become erratic. This can result in abnormally high or low idle speeds, or in some cases, repeatedly fluctuating idle speeds. Engine stalling: Another more serious symptom of an idle control valve problem is engine stalling. If the idle control valve fails completely, it may leave the vehicle without an air source to maintain proper idling. This can cause the engine to stall while running, and in some cases, may prevent the engine from idling at all, causing it to stall immediately after starting.
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