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Problem with #1 cylinder 960 6cyl 900 1992

posted by  someone claiming to be Andrew Bland on  Sat Jun 9 05:09 CST 2007 [RELATED]

I have a problem with the # 1 cylinder in the 960. It worked fine then the "check engine" light comes on, still works OK. Then #1 stops firing, check the spark coil, no good, replace coil everything works fine. Two days later the same problem, except this time it melts up the new coil and starts to short out inside. I had to remove the wires to stop the short. I now have a 5 cylinder car, any suggestions??. Thanks,Andrew








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    Problem with #1 cylinder 960 6cyl 900 1992

    posted by  someone claiming to be Andrew bland on  Sun Jun 17 12:47 CST 2007 [RELATED]

    Thanks to everyone for their help!!.Car is working fine now.








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      Problem with #1 cylinder 960 6cyl 900 1992

      uid 11021's pic
      posted by  dewfpo on  Sun Jun 17 16:11 CST 2007
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Thu Oct 23 18:34 CST 2014
      [RELATED]

      Can you please tell us what the problem turned out to be and how you repaired it?

      Thanks, DEWFPO
      --
      1998 S90 077,400 and 1995 964 154,100








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    Problem with #1 cylinder 960 6cyl 900 1992

    posted by  Paulii on  Thu Jun 14 01:11 CST 2007
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    last visit: Fri Jun 6 03:04 CST 2014
    [RELATED]

    Hello Andrew,
    You need to check your spark plug and then the intake manifold gasket. Bad spark plug will cause the coil meltdown, if the wire was grounding you would have no fire. I use the Ngk plugs because of long service life and reliability, stay away from any bosche platinum product, they ----. If you want extra performance and maybe a bit a gas mileage increase, use the irridated plugs. Pauli








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    Problem with #1 cylinder 960 6cyl 900 1992

    posted by  anarchyx34 on  Wed Jun 13 03:39 CST 2007
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    last visit: Thu Feb 21 03:14 CST 2008
    [RELATED]

    Check to see if any of the wires going to the coil are grounded with the key on. They shouldn't be. Wiggle the harness around and see if you can get a ground to show up. A short to ground on the - side of the coil will definitely burn it up.








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    Problem with #1 cylinder 960 6cyl 900 1992

    uid 11021's pic
    posted by  dewfpo on  Sat Jun 9 14:14 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Thu Oct 23 18:34 CST 2014
    [RELATED]

    The power stages control the coils. I've never heard of one causing the problem you have. It almost sounds as if something is grounding out. I hesitate to advise you to swap the two power stages (front to rear) and see if the misfire changes cylinders in case the problem is with the power stage (you don't want to burn out another coil). Perhaps Paulii or Rule308 can advise.

    DEWFPO
    --
    1998 S90 077,400 and 1995 964 154,100







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