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The knocking sound could be the doors of the vents closing when you turn it off,they are controlled by vacume.Or it could be the plastic making the sound due to change in temperature. If it is a early to mid 90's Chevy it is most likely the actuator solenoid that controls the recirc or fresh air. If it is it will knock for about a minute and 30 seconds when you start the vehicle and about the same wheen you turn it off.
What else can I help you with?
Why doe' s my car make a knocking sound when turning?
Suspension is the most likely cause of your knock when turning. The part responsible is probably your tie rod, which is what allows you to turn the steering knuckle. They are inexpensive and easily replaced. You can avoid an alignment fee by being careful with your measurements during replacement.
What would cause a rubbing sound when turning after a complete stop?
most likely a bearing has gone out
What causes singing water pipes?
Singing water pipes can be caused by air that is trapped in the pipes. The air can cause a whistling or singing sound, or it can cause the pipes to knock or rattle.
What would cause a squeaking sound when turning left or right in a 2003 F-250?
Worn ball joints?
What causes a squealing sound when you turn the wheels completely to the right or left?
The cause of the squealing sound is because you are turning the steering wheel completely to the right or left
Knock on the sky and listen to the sound?
I get it this way... knock on heaven's door, and listen its reply.
Does the engine knock with a bad knock sensor?
NO it will not. If you have a knocking sound then you have trouble inside of the engine.
How do you use knock as a noun?
The knock on the door was very loud
What is the sound of somthing hitting a tree?
A Knock
Is "knock" an example of an onomatopoeia?
Yes, "knock" is an example of an onomatopoeia because it imitates the sound it represents.
What is the thud when you turn wheel?
If it is a front wheel drive sometimes a bad cv joint can cause a popping sound when you are turning.
What would cause a Splashing sound while turning or braking?
Low coolant causing air bubbles in the heater core.....
