Thread: Knock sound when turning car off
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Old Jun 28, 2010 | 07:11 PM
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onehundred80
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From: Ontario
Default Re: Knock sound when turning car off
Originally Posted by ProjectMayhem
And it probably is. I had to replace the upper coolant hose because the fan slowing rubbed a hole in the side and made the hose blow. Have someone turn the car on and off for you with you looking under the hood maybe?
Are you sure it was not the fan shroud that was rubbing the hose, as there is a TSB on that issue. It seemed to occur on 2004 models, mine among them, and the fix is to turn the hose a little, which moves it away from the shroud.
I really can't see the fan hitting the hose when the engine has stopped because it would be too obvious and the hose would not last too long.
I would think that if some object was in the heating fan area it may hit the fan there and that has certainly occurred before.
 
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