Date: Sun, 28 Sep 2003 11:00:30 +0100 From: Johannes H Andersen <johsnopsamfitter.com> Subject: Re: 9000cse idle speed question...
Chris O'Malley wrote: > > Hi all- The idle on our 1993 9000 cse is acting strange. The car runs fine, > but in drive, it idles around 1000-1100rpm. In nuetral or park, it idles at > about 1500rpm....It doesn't race or surge up and down, it's just high... > > Any ideas on what would cause this, but allow the car to run fine??? It is likely caused by a vacuum leak. Listen around in the engine for whistling noises. Once had this due to a split end of a small size hose from the manifold, apparently carrying a pressure signal to a sensor. The split was hidden from view from above. I cut 1" of hose end, refitted and bingo. Otherwise, a general cleaning of the air intake and Air Idler Valve might also help. Johannes http://sizefitter.com
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