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No spark????

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Old Nov 22, 2012 | 08:40 AM
  #1  
bronkntrukholik's Avatar
bronkntrukholik
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No spark????

Hi all, i my dad just got a '79 bronco with the 351m, he couldn't get it running so i went down yesterday to help hime and narrowed it down to spark issues! So far i have changed out 3 duraspark boxes, 3 coils, verified the rotor is spinning, and still no spark! I checked power with a test light at the coil with the key on i have constant power on the + coil, but i know the - coil should blink on and off as it cranks, any suggestions where to look next? I know the previous owner was having troubles with this thing, prob why he got rid of it!
 
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Old Nov 22, 2012 | 10:39 AM
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GillisB93's Avatar
GillisB93
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Try the pickup coil in the distributor
 
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Old Nov 22, 2012 | 11:13 AM
  #3  
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montana_highboy
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The ignition module isn't firing the coil, check for continuity on green wire between coil and module.
 
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Old Nov 22, 2012 | 11:14 AM
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NumberDummy
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Originally Posted by GillisB93
Try the pickup coil in the distributor.
D4PZ-12A112-A .. Stator aka Magnetic Pickup Coil (Motorcraft DU-1A) / Available from Ford/autoparts stores.

1974/79 all V8's except LTD/Grand Marquis 351W with EEC.
 
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Old Nov 22, 2012 | 04:11 PM
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bronkntrukholik's Avatar
bronkntrukholik
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thanks guys, i didn't have time today to try switching the pick-up coil out yet, i grabbed one so hopefully i can try it tomorrow! It looks fairly simple to change out!
 
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