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John Robertson2

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Since: Feb 12, 2004
Posts: 117



(Msg. 1) Posted: Mon Jan 30, 2006 10:55 pm
Post subject: idle problems
Archived from groups: alt>autos>volvo (more info?)
My wifes 740 turbo suddenly revs up quickly then settles down to a sweet
idle .It does its rarely ,but you wouldn't want to be behind a car at the
lights when it happens .Any clues please?I have cleaned the air idle mixture
unit out as it was messy but this is a different problem .It revs quick and
fast then returns calmly at around 800 rpm .

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zencraps

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Since: Oct 06, 2005
Posts: 70



(Msg. 2) Posted: Mon Jan 30, 2006 10:55 pm
Post subject: Re: idle problems [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Sounds like an intermittent short in the wiring harness leading to the
constant idle speed motor. Replace the wiring harness.

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