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Q: Car sucking air.

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My car is sucking air somewhere, it runs rough and will not idle. I replaced the water pump, thermostat, timing chain, manifold gasket, and the crank shaft sensor.

A: You are correct in that a vacuum leak could...

You are correct in that a vacuum leak could cause a rough idle condition. However, your issue has many potential causes. I suggest having a trained mechanic with the correct diagnostic equipment pinpoint your problem.

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