How can I clean my idle air control?
Some people remove their IAC and clean it. It’s not difficult to do. Unplug the IAC. Remove the (2) bolts with a 10mm socket.. While holding it so that the motor is pointed up and the ports are at the bottom, spray it out with a good carburetor or throttle body cleaner.
What are the symptoms of a bad IAC?
Symptoms of a Bad IAC: 1 Howling in gear at low idle 2 Rough or fluctuating idle speed 3 Runs but stalls at idle / won’t idle at all 4 Fluttering sound in intake 5 Trouble code P1504, P1505, P1506, P1507 P1508, or P1509
Can a weak idle air control cause engine problems?
Sometimes a weak idle air control motor will can cause engine problems without triggering a MIL (check engine) light. Inspect vacuum lines when servicing the idle air control valve and replace any that are broken or dilapidated. Some people remove their IAC and clean it.
Where is the idle air control valve located?
The idle air control valve is located on the intake and is designed to adjust engine air intake at idle which controls the engine idle speed. The PCM receives feedback data from various sensors to send output signals designed to adjust the air passage open or closed which adjusts the engine idle speed.
What do I need to check an idle air control valve?
If your vehicle was built prior to 1996, you will need an OBD I scanner. Vehicles made after 1996 will need an OBD II scanner. Connect the code scanner to the port beneath the dashboard and turn it on. Once connected, use the scanner to bring up the error codes making the check engine light come on.
What should I do if my idle control motor is disconnected?
The engine should still start and run without any issue despite the idle control motor being disconnected. Be sure to tuck the wiring you disconnected up in the engine bay so it doesn’t get caught in any moving parts. Look for a difference in idle speed.
What should resistance be for idle control motor?
Connect an Ohm meter to the two and measure the resistance between them. Fords are designed to operate with the resistance in the solenoid in a range between 7.0 to 13.0 ohms. If the resistance is outside that range, the idle control motor needs to be replaced.
What does it mean when idle control does not increase?
If the engine idle does not increase, it means there is an issue at the idle control motor of its circuit preventing the signal from changing the idle. You can purchase a bidirectional scan tool at your local auto parts store. Make sure the wiring harness is firmly connected to the idle control motor before conducting this test.