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Idle
Posted by jaseche (more from jaseche) on Mon, 20 Nov 2000 14:53:22
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00

I have a question about my 1987 900 Turbo..

When I start the car in the morning, it idles smoothly and doesn't
hesitate. Seems to be right at 900-1000rpm... perfect.. doesn't rev or
anything..

However during this last week as soon at it warms up, the idles creeps up
to maybe 1400 rpm..

Strange!

It doesn't come down unless the car really sits for a long time, and I
don't think it EVER gets back down to what it should be.

My first thought is the Idle Air Control Valve ( I tapped it with a
screwdriver, it didn't change anything), which I will take out and clean
(Carb cleaner? WD40? Or ?) this weekend, but I wondered if anyone had any
ideas..

I also checked that the throttle cable is not stuck, and all wires seem to
be in place. I thought about a vacuum leak, but wouldn't that affect the
idle at all times?

Thanks in advance..

Jason
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