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Author Topic: Car sometimes revving on its own  (Read 777 times)

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RichB

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Car sometimes revving on its own
« on: 26 April 2009, 10:27:35 »
Hi guys, over the last week my car has twice been revving on its own.  First time it did it the car took quite a while to start and then the revs were much higher than normal about 2 - 2.5k, when I started driving the revs were staying up and pushing the car along even under breaking.  The car did similar last night, I put it into neutral and the revs gradually came down.  Obviously i'm now worried about this as I don't want to have an accident cause the car is pushing me under breaking.  Any ideas on what could be causing this?

On a positive note it seems that my coolant leak has stopped or slowed considerably so have got some time to get prepared to sort the thermostat out  :y


Cheers,

Richard
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Welung666

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Re: Car sometimes revving on its own
« Reply #1 on: 26 April 2009, 10:32:07 »
Depends on the model of your car and engine size. You should really edit your profile to say to save a lot of identical questions in the future ;) I'd say AICV needs cleaning as a start :y
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feeutfo

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Re: Car sometimes revving on its own
« Reply #2 on: 26 April 2009, 10:35:53 »
what engine ? Fill in your profile details, it saves everyone keep asking.
Probably air leak on inlet.
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Seth

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Re: Car sometimes revving on its own
« Reply #3 on: 26 April 2009, 10:38:11 »
Sounds like the idle control valve and breathers need a good cleaning.
You need to update your profile so that it can be seen exactly what model you're driving
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Gettin' seriously hacked-off by those who ignore the wisdom of proven experience ... and Forum guidelines.

RichB

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Re: Car sometimes revving on its own
« Reply #4 on: 26 April 2009, 10:49:47 »
Sorry guys i'm sure I had put the details in before, not sure what happened there.  Its a 3.0 Auto, I will have to check the breathers and ICV although they were clear last time I checked.  Also when I start the car it takes a few turns to fire up and then runs a little bit rough for a few seconds, could this have have something to do with it?


Cheers,

Richard
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ali

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Re: Car sometimes revving on its own
« Reply #5 on: 26 April 2009, 11:01:09 »
I cant help with how to solve it but my 1st car did that. My only advice is dont stop to close to Zebra crossings, I nearly killed an old lady!!!!!
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