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Q: Car starts but won't run.

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My car starts but won't run. Why?

If your engine starts but won’t stay running (idling) the problem is most likely a faulty idle air control (IAC) motor. The IAC opens and closes to maintain engine idle, if this component goes out, the engine will keep stalling. A qualified technician, like the ones at YourMechanic, can help you with problem.

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