5000 CSQT high RPM idle

Joshua van Tol josh at spiny.com
Thu Jul 6 23:07:04 EDT 2006


Sometimes the idle air control valves get stuck. You can check this  
scenario by pinching off one of the hoses to the valve with a needle  
nose pliers. If the idle slows when you do this, suspect the idle  
valve. Sometimes they just gunk up with intake deposits, and  
sometimes the springs break or weaken.


On Jul 6, 2006, at 8:51 PM, Jon Spensko wrote:

> Clan Audi,
> New to the list.  Any ideas will be a great help.  My Avant was  
> running perfect and then out of the blue today started to idle at  
> approx 3,100 RPM.  The cable is loose & throttle body closed.   
> Turbo boost has been finicky just lately, sometimes boost then  
> not.  Everything external on the engine looks correct.  Thanks in  
> advance for any and all ideas.
>
> Jon Spensko
> 1988 5000 CSQT Avant 163,000
> 1982 240 DL Volvo 161,000
> 1994 Explorer 201,000
> 1992 100S V6-12V 263,000
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