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1979 ford f-350: wouldnt start..coil..ign..module key switch…

Customer Question
got a 1979 ford f-350...
got a 1979 ford f-350 changed the starter soliod it started no problam later started it up put it in the shed 4-5 days later went to get it it wouldn't start, replaced the coil dist. ign. module key switch, still no start replace the coil again. it started was setting the timing it quit no fire coil went bad. any hits
Submitted: 8 years ago.Category: Ford
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Answered in 13 hours by:
6/14/2010
Ford Mechanic: ASEMaster35yrs, Master Auto Tech replied 8 years ago
ASEMaster35yrs
ASEMaster35yrs, Master Auto Tech
Category: Ford
Satisfied Customers: 2,095
Experience: ASE Certified since 1972,Master Auto tech,Heavy Truck,worked on all makes and models
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OK, if I understand you correctly, you are getting no spark at the plugs. Do you have 12 volts at the +side of coil? When you take a test light to the - side of coil, does it pulse flash when cranking? Are you getting fuel? Does it turn over normally but does not start?
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Customer reply replied 8 years ago
Like i said it was running i was setting the timing it just quit no fire coming from the coil. this is the third coil that i have put on this got 12 v. at the coil. I did find some wires on the dist. end that were bare and maybe rubbing hope to get them fixed today that might be why the coils are going bad?
Ford Mechanic: ASEMaster35yrs, Master Auto Tech replied 8 years ago
Coils don't go bad like that, but it is very possible if the bare wire shorted to ground your car will stop running but the coil is still good. Did you take a test light to see if the - side of coil was pulsing or steady light?
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