The Idle Control Valve, commonly called the IAC valve, is a crucial component within your Montana van. The IAC valve's key job is to control the engine's idle speed. When you notice your Montana begins to stall frequently or has a unusual idle response, the IAC valve may need to be cleaned. The IAC valve is a component that can be easily cleaned yourself rather than paying a local mechanic. To ensure your Montana runs efficiently, clean the IAC valve immediately.
Allow the Montana van to cool for at least 30 minutes, if the vehicle has been recently running. This allows the components and engine to cool, preventing injury and burns.
Open the hood of Montana and locate the IAC valve. The IAC valve can be found attached to the throttle body. The valve can be identified as a cylinder unit, about three to four inches long. Keep your Montana owner's manual nearby for reference if needed.
Detach the IAC valve harness by unplugging it. Remove the two bolts that secure the valve into the mount using a socket wrench.
Lift the IAC valve off of the mount. This may require some force depending on grime buildup.
Using throttle body cleaner, spray the IAC valve holes. Clean carbon build up or debris using a wire brush, throttle cleaner and a rag. Clean the valve mount using cleaner and a rag.
Reinstall the IAC valve into place by placing the valve onto the mount. Replace the two bolts, tighten and secure using the socket wrench. Reattach the harness and close the hood of the Montana.
