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Your car while sitting idol sounds like someone is pressing the gas?

If your car sounds like someone is pressing the gas while idling, that's a serious issue and should be investigated immediately by a qualified mechanic. Several things could be causing this:

* Vacuum leak: A significant vacuum leak can cause the engine to rev uncontrollably. Air is entering the system in an uncontrolled manner, fooling the engine's computer into thinking it needs more fuel.

* Faulty Idle Air Control (IAC) valve: This valve regulates the air flow to the engine at idle. A malfunctioning IAC valve can lead to erratic idling, including surging or revving.

* Throttle position sensor (TPS) issue: A faulty TPS provides inaccurate information to the engine control unit (ECU) about the throttle position, causing it to behave erratically.

* Faulty Mass Air Flow (MAF) sensor: A dirty or faulty MAF sensor can provide incorrect information about the amount of air entering the engine, leading to incorrect fuel delivery and potentially high idle speeds.

* Problems with the engine control unit (ECU): While less common, a problem with the ECU itself could be causing the erratic idle.

* Throttle body issues: A dirty or sticking throttle body can cause the idle speed to fluctuate.

Ignoring this problem is dangerous. It could lead to engine damage or even a dangerous situation while driving. Take your car to a mechanic as soon as possible for diagnosis and repair.

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