What is the purpose of the idle control valve?
The idle control valve, also commonly referred to as the idle air control valve, is an engine management component that is found in one form or another on the majority of road going vehicles. Its purpose is to control and regulate the engine idle speed , increasing and decreasing it as necessary to keep up with operating conditions.
Can a bad idle control valve cause stalling?
3. Engine stalling The idle control valve, also commonly referred to as the idle air control valve, is an engine management component that is found in one form or another on the majority of road going vehicles.
What are the symptoms of an idle air control valve ( IAC )?
Another symptom of a potential issue with the idle air control valve (IAC) is; an illuminated Check Engine Light. If the engine control module detects an issue with the idle air control valve circuit or signal; it will set off the Check Engine Light to notify the driver that there’s an issue.
How much is an idle air control valve?
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How can I test my idle control valve?
- Open the hood and remove the screws holding the idle control valve to the throttle body on the back of the engine.
- Unplug the electrical plug running to the control valve.
- Pull the idle control valve off the throttle body and turn it over to expose the valve openings.
- Turn the dial on the voltmeter to “Ohms.”
What are some common symptoms of a bad idle air control valve?
One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed. The idle air control valve is programmed to regulate and maintain the engine idle speed at a constant rate. If the valve fails or has any issues it can cause the idle speed to be thrown off.
How do you repair idle air control valve?
Part 1 of 2: Prepare for the job of cleaning the idle air control valve (IACV) Step 1: Locate the IACV. It will be positioned on the intake manifold along the rear by the throttle body. Step 2: Remove intake hose. You’ll have to take off the intake hose from the throttle body. Part 2 of 2: Remove the IACV. Step 1: Disconnect the battery cable.
How do you check the idle air control valve?
One of the easiest ways to test your idle air control valve is to simply look at it. Check to see if the valve stems have dirt on them or if they are burnt. Check the valve opening on the throttle body to make sure that there is solid contact between the valve and the stem.