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Author Topic: engine revs unstable  (Read 283 times)

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cliff75

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engine revs unstable
« on: 05 August 2010, 20:27:39 »
on idle my 2.5 v revs are unstable, bouncing from about 500 to 800 rpm. any ideas how to stop this. thanx
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TheBoy

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Re: engine revs unstable
« Reply #1 on: 05 August 2010, 20:36:13 »
cure the air leak or clean the ICV :y
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cliff75

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Re: engine revs unstable
« Reply #2 on: 05 August 2010, 20:37:33 »
i might sound stupid but where is the icv?
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Darth Loo-knee

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Re: engine revs unstable
« Reply #3 on: 05 August 2010, 20:42:40 »
Like already said try your idle control valve first which looks like a small horizontal can on the passenger side of the plenum (big alloy thing on top of the engine which says Ecotec on it).
Air leaks can be a problem to find depending on how many monkey mechanics have had there paws around it.
Try the icv and go from there mate   :y
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cliff75

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Re: engine revs unstable
« Reply #4 on: 05 August 2010, 20:45:00 »
will do cheers mate
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