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intermitant engine firing


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#1 gudgo1

gudgo1

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  • Ford Model: 1.8 zetec mondeo
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Posted 13 October 2009 - 08:34 PM

I have got a 03 mondeo 1.8 zetec and when I am on a long journey the engine will miss fire when I slow down. It wil run very smoothly along the motorway but on the normal road after the run it feels like its firing on 3 . So I stop turn the car off and back on and it runs as sweet as a nut then. The engine management light will come on sometimes afterwards but goes away two days later.

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#2 Milezz

Milezz

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Posted 16 October 2009 - 03:40 PM

I have got a 03 mondeo 1.8 zetec and when I am on a long journey the engine will miss fire when I slow down. It wil run very smoothly along the motorway but on the normal road after the run it feels like its firing on 3 . So I stop turn the car off and back on and it runs as sweet as a nut then. The engine management light will come on sometimes afterwards but goes away two days later.



this can be many things
1 could be the fuel isnt getting through properly, try redex diesel or petrol whatever your fuel type
2. gastkets but this is rare
3. HT lead faulty, try Halfords =]
4. spark plug faulty, once again halfords,
5. igniton system, worst case senario take to a garage


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