Question about Ford Bronco

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My bronco has a 351m. it will not start unless i advance the timing alot. after i get it running i only have spark to #2,4,6,and 8 cylinders. I Have replaced the coil, condenser, wires, modual, cap, rotor. I used a jumper wire to 12v run on the ignition modual. All of the changes and parts havnt changed anything. To check the timing I brought #1 piston up to TDC on the compresion stroke and all was ok. None of the friends mechanics or parts houses have had any idea what is going on. Please help!

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  • Aaron Jun 15, 2009

    I have the firing order 13726548. i just built the motor 3 months ago and it ran great till now i am picking up a distributor today hope it works. thanks,

  • Aaron Jun 21, 2009

    Wanted to let you know the problem was the coil. It was only 3 months old. First time ive herd of this.

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What firing order are you using. It should be 13726548. If you still have no spark on 1-3-5-7 then I would say the distributor is junk. As for the timing, I wouldn't worry about that yet until you get it running on all 8. But it might have a jumped timing chain.

Posted on Jun 15, 2009

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