Date: Wed, 27 Sep 2000 10:54:02 +0300 From: Roy =?iso-8859-1?Q?Bj=F6rkstrand?= <nospamroilonopsamut.fi> Subject: Re: Idle - With a mind of its' own
Kyle Kontney wrote: > Hello all, > > My 1985 SAAB 900 Turbo has always had a weird idle problem. When I start > the car in the morning, it idles at about 850 RPM. If I do mostly city > driving (Stop, shift-through-gears, Go) I may experience idle speed of 1500 > RPM at a stop light. What gives, isn't it usually the other way around. > 1500 until it warms-up, then down to 850. > > Any clues would help. > > -Kyle Vacuum leak at air intake manifold gasket? My 900i -91 (LH-Jettronic) acted about the same. The longer I drove the higher was the idle (the hole got "bigger" when it was warm). Take a rubber pipe and use it as a "stethoscope" to locate the possible leak. The other way is to spill/spray water to gasket neibourghood. If there is no leak then it may be something more expensive... Roy
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