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  1. #1
    Join Date
    May 2007
    Posts
    35

    Default V8 Running problems

    Hi all
    I have a 1998 5.0l v8 with thunderbolt 5 ignition, It starts and runs fine for about 10 to 15 seconds and then cuts out, it does the same whatever the throttle/revs are. It idles at 600 rpm. It doesn't restart straight away, i was thinking fuel and therfore changed the fuel sepaerating filter but she still consistently dies. Any help would be great.

  2. #2
    Join Date
    Oct 2001
    Posts
    2,577

    Default Re: V8 Running problems

    Most likely ignition module.

  3. #3
    Join Date
    Apr 2007
    Posts
    5,041

    Default Re: V8 Running problems

    I have a complete scrap engine in my workshop if your interested, I will ring the owner and ask him what he wants to do with it.

  4. #4
    Join Date
    Jul 2004
    Posts
    1,013

    Default Re: V8 Running problems

    Have you checked the oil pressure switch that goes to the fuel pump ?
    You have an a oil pressure sender that goes to the guage on the dash, but also you a seperate switch that goes to the fuel pump, idea being that it wont pump fuel if the oil pressure is low, it will only give you 15-20 seconds of running which seems to be what you are getting. I have heard its a common problem, easy to test just jump the wires on the switch and see if it cures the problem.
    "Boat that never leave pond, never know wonder of ocean...."

  5. #5
    Join Date
    May 2007
    Posts
    35

    Default Re: V8 Running problems

    Typical marine engineer turns up and it doesn't cut out, ( midas touch). It seems to be runing rich i'll post again the outcome.

  6. #6
    dpb's Avatar
    dpb is offline Registered User
    Location : Poole, Dorset
    Join Date
    Feb 2007
    Posts
    532

    Default Re: V8 Running problems

    If it is a carburetor model check the choke operation.

  7. #7
    Join Date
    May 2007
    Posts
    35

    Default Re: V8 Running problems

    Hi all
    Problem sorted, i tried what neil said above and bridged the wires at the Oil pressure switch that leads to the fuel pump and she is now purring like a kitten.

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