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.

2005 GMC Jimmy Automatic, AutomaticFACTORY OEM SERVICE PROCEDURE

Removal Procedure

Turn OFF the ignition.
Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .

Fig 1: View Of IAC Valve Electrical Connector

GM312513

Courtesy of GENERAL MOTORS CORP.

Disconnect the idle air control (IAC) valve harness connector.

Fig 2: View Of IAC Valve Screws

GM12909

Courtesy of GENERAL MOTORS CORP.

Remove the IAC valve mounting screws.

Fig 3: View Of IAC Valve & O-Ring Seal

GM12910

Courtesy of GENERAL MOTORS CORP.

Remove the IAC valve and O-ring from the throttle body assembly.

Chapter Navigation

Return to Chapter: Idle Air Control (IAC) Valve Replacement

Factory Service Tools

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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.