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Plenum Repair now no spark

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Old May 10, 2011 | 04:25 PM
  #11  
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No, I don't get any spark at all. I don't have any voltage between the two wires that feed the coil while the engine is cranking. I tested this by unplugging the two pin harness from under the coil and testing for DC voltage while the engine was being cranked......nothing. I also tested from each wire to ground with the engine cranking....nothing. The coil's primary and secondary resistance fall within specs.
 
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Old May 10, 2011 | 04:36 PM
  #12  
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grab the 95 service manual, there is a thread around here somewhere that has a link to it..... check the wiring diagrams. If you are getting fuel pump prime, but, no spark at all, need to find out where you are losing power at.
 
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Old May 10, 2011 | 04:43 PM
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Alright, I have the Haynes manual and an Alldata account to fall back on. I just figured I'd check to make sure there weren't any easy-to-make mistakes I haden't though of. I'll let ya'll know what it was when I find it.
 
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Old May 10, 2011 | 06:27 PM
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check the group of about 3 grounds on the power steering accessory bracket.
 
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Old May 10, 2011 | 08:16 PM
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It was the crankshaft position sensor unplugged. I didn't even realize this truck had one to be honest, Ford didn't use them on their speed density systems. I had a really hard time getting the pigtail from the sensor to reach all the way over to where it plugs in near the driverside valve cover. As soon as I plugged it back in she fired right up.
 
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Old May 10, 2011 | 08:56 PM
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Sweet victory!
 
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