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Any Idea??

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Old 12-08-2007, 07:45 PM
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Cossy Chris
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Default Any Idea??

When im on the motorway in my Cosworth at a constant speed for a while and then put my foot down so boost comes in it starts misfiring. Anyone got any ideas?
Old 12-08-2007, 07:46 PM
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Dave Parker
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fuel filter ?
Old 12-08-2007, 07:58 PM
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plugs fouling then clearing

Steve.
Old 12-08-2007, 07:59 PM
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philram
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Wrong plugs or plug gaps.... is it blowing the spark out?
Old 12-08-2007, 08:04 PM
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Cossy Chris
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Wrong plugs or plug gaps.... is it blowing the spark out?
Thats what I was thinking it could be. Will try that first.
Old 12-08-2007, 08:17 PM
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Cossy Chris
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Could it be a fuel problem?
Old 12-08-2007, 08:29 PM
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BigErn
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Does it missfire briefly on start up? Mine was and also doing what yours is, only for a couple of seconds. Turned out the head gasket was just starting to fail.

Other than that Id say it is overfuelling or blowing its spark out.

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Old 12-08-2007, 08:39 PM
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Cossy Chris
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Its fine on start up and driving round town just when im on a run on the motorway.
Old 12-08-2007, 08:42 PM
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rs nuts
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sounds like plugs too me chris aswell
Old 12-08-2007, 09:01 PM
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Cossy Chris
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Will have to take a trip to fords to get some. Is it motorcraft 701s I need?
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