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What controls the idle on a 2001 Chevy malbu?

The idle on a 2001 Chevy Malibu is controlled by the Idle Air Control (IAC) valve. The IAC valve is a small, electronically controlled valve that regulates the amount of air that bypasses the throttle body. This air is needed to keep the engine running at a smooth, consistent idle.

The IAC valve is located on the throttle body, and it is actuated by the Powertrain Control Module (PCM). The PCM uses a variety of sensors to monitor the engine's idle speed, and it adjusts the IAC valve position as needed to maintain the desired idle speed.

If the IAC valve is not working properly, it can cause the engine to idle too high or too low. In some cases, the engine may even stall. If you are experiencing problems with your Malibu's idle, you should have the IAC valve checked by a qualified mechanic.

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