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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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Old Jan 30, 2009 | 04:23 PM
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86302f150
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From: Tennessee
no fire

I recently replaced my upper and lower intake manifolds on my 86 5.0 EFI and now after indexing the distributor the engine will rotate but no fire. also the positive cable where it meets the hot serial bus gets really hot and the bus sparks and smokes. any ideas?
 
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Old Jan 30, 2009 | 10:18 PM
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CE-f250
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Assuming everything was fine before you changed manifolds, did you go back and check everything to make sure you didn't pinch any wires anywhere? It sounds to me like something is grounding somewhere. You might check all wires and be sure no insulation is worn off and making contact where it shouldn't.
 
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Old Feb 11, 2009 | 02:14 PM
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86302f150
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only wire I found that had insulation stripped was the coolant temp sensor and I cut out the damaged sectiond and spliced in a new jumper wire
 
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