Question about 1997 Ford F150 Regular Cab

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Cylinder 8 missfire

Replaced plug, plugwire and coil pack. No error codes on scout. Still have a missfire.

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  • silver top May 11, 2010

    hi from uk you have covered ignition possible faults ? may i suggest your next option would be to carry out a compression test on cylinder /s considering age of vehicle and milage?? it may well be you have an exhaust valve burning out resulting in low compression on cylinder if you have good spark to plug? then this is most likely the fault please come back with update ?

  • Bryan
    Bryan May 14, 2014

    What is the firing order of 1996 Daewoo truck 8 cylinder?



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I'm with carfixing, other than you might want to get a 6 volt flashlight bulb and check to see if the computer is firing that injector. Just wire the bulb up so that the two wires are stuck in to the injector connector. The bulb should flash on and off rapidly, if it does, replace the injector. If it does not, repair the injector wiring where the mouse chewed it up somewhere along the harness.

Posted on Mar 12, 2009

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If the plug and coil are good and you have good compression you should probably replace the cylinder 8 fuel injector.

Posted on Mar 12, 2009


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A code P0308 may indicate that one or more of the following has occurred:

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You may need a new wiring harness. They have to be ordered from Germany. This is my guess. (I am having a similar issue with my '94; rough idle, #4 cylinder not firing intermittantly, replaced plugs and 8 ignition coils; new harness is my mechanics guess)

cheers and buena suerte

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