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08 Cayenne v6: Squeaky noise when let go off gas pedal

P T
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P T Member

P T

Posted
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I am getting a squeaky noise from under the hood. Was not able to identify the exact location of the noise. I have changed my serpentine belt, assuming loose/worn out belt would have caused it, but the noise didn't go away.

Sometimes, I have seen intermittent "Oil Pressure too Low" warnings on the instrument cluster, but the warning goes away when I turn off the engine and again turn back on. My oil levels have been pretty stable. I have recently changed my engine oil too, but the noise is still persistent. 

I am also thinking to replace idle pulley, not sure if this would fix the issue.

Can any one help me diagnose this.

  • 1 month later...
P T Member

P T

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I had a dealer diagnose this issue. My air oil separator diaphragm had gone bad(which is located inside engine). No more squeaky noise after replacing it.

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