My cobalt 2007 makes a knocking noise in the passenger dash when I turn on the car what can this be?

Asked by Sohfeeya Jul 12, 2015 at 09:33 PM about the 2007 Chevrolet Cobalt LT Sedan FWD

Question type: Maintenance & Repair

Is it serious? Should I drive it? And how
much does this cost

50,705

John answered 8 years ago

Is that where the hearer coil is? You may have air in the system. Without hearing the noise or if it is doing it before start up or after heat up? Are you sure it is in the dash or under the hood? It may be a belt becoming frayed and part of it is hitting a cover guard. Have the engine checked while the motor is running.

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160

Jd answered 8 years ago

Recirculation air flap under glove box, caused by cheap foreign parts that go out. Flapper is shot. Big issue in cobalts

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My cobalt 2007 makes a knocking noise in the passenger dash when I turn on the car what can this be? 2 Answers

Is it serious? Should I drive it? And how much does this cost

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My cobalt 2007 makes a knocking noise in the passenger dash when I turn on the car what can this be?

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My cobalt 2007 makes a knocking noise in the passenger dash when I turn on the car what can this be?

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