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Focus Mis-Fire

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  • 26-11-2008 2:41pm
    #1
    flaps2008
    Registered Users Posts: 34 ✭


    Hi all

    Just after doing a service on a 02 Ford Focus ie. oil, oil filter, air filter and spark plugs. and it sounds like the car is mis-firing. Would anybody know the cause of this. Any help is appreciated.


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    #2
    tred
    Registered Users Posts: 1,472 ✭✭✭tred


    flaps2008 wrote: »
    Hi all

    Just after doing a service on a 02 Ford Focus ie. oil, oil filter, air filter and spark plugs. and it sounds like the car is mis-firing. Would anybody know the cause of this. Any help is appreciated.


    Engine coils? Who did the service.


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    #3
    JoeySully
    Registered Users Posts: 1,276 ✭✭✭JoeySully


    flaps2008 wrote: »
    Hi all

    Just after doing a service on a 02 Ford Focus ie. oil, oil filter, air filter and spark plugs. and it sounds like the car is mis-firing. Would anybody know the cause of this. Any help is appreciated.

    if the problem only occurred after the service then i would check your spark plug leads and make sure that they are connected properly and in the correct series! they could have been damaged when you pulled them off.
    your new spark plugs could also be at fault


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    #4
    flaps2008
    Registered Users Posts: 34 ✭flaps2008


    Thanks just tried replacing the spark plugs and found one of them was at fault.
    Thanks 4 the info.


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    #5
    Darragh29
    Closed Accounts Posts: 7,097 ✭✭✭Darragh29


    flaps2008 wrote: »
    Hi all

    Just after doing a service on a 02 Ford Focus ie. oil, oil filter, air filter and spark plugs. and it sounds like the car is mis-firing. Would anybody know the cause of this. Any help is appreciated.

    If it is just after being serviced, the possibilities are:

    (1) Incorrect plugs or possibly if one plug was dropped accidently before fitting, the gap is now incorrect and causing a misfire.

    (2) Plug lead on at least one cylinder not seated properly on the spark plug terminal. Or plug lead was damaged when pulling it out and is not conducting properly internally.

    (3) Could also be a cracked spark plug.


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    #6
    Hal1
    Registered Users Posts: 8,720 ✭✭✭Hal1


    I was looking at service kit for a focus and noticed they included a fuel filter, would that be an essential part of a service?


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    #7
    Darragh29
    Closed Accounts Posts: 7,097 ✭✭✭Darragh29


    Hal1 wrote: »
    I was looking at service kit for a focus and noticed they included a fuel filter, would that be an essential part of a service?

    Only for a diesel.


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