Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Intake Air Control Solenoid
With engine off, wait 10 seconds, and then disconnect Intake Air Control (IAC) solenoid. Solenoid is mounted on firewall side of intake plenum. Using an ohmmeter on 200-ohm scale, check resistance between IAC solenoid terminals. Resistance should be 50-100 ohms. If resistance is not as specified, replace solenoid.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.