Q: car shaking

asked by on February 20, 2017

when the car is running it shakes really bad and the idle goes up and down.what do you think it could be?

Hi there. Without knowing what type of car, truck or SUV you have, that’s difficult for us to give you an accurate assessment. In most cases a problem like this is caused by a vacuum leak or a malfunction of the idle control or ignition system.

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