1984 Chevy Silverado No fire to Sparkplugs from Distributor

1984 CHEVROLET SILVERADO
84,000 MILES • V8 • 2WD • AUTOMATIC
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DOOWOPMAC
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THe truck was running fine except used to much gas. Changed sparkplugs, still fine. Changed distributor cap and rotor button, lost fire to the plugs. Changed coil and ignition module, still no fire to plugs. One last item to change,is the condensor. I even replaced the distributor with another one still can't get fire to the plugs.
Jul 4, 2010 at 9:00 AM
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JIM SHIRRON
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Do you have fire to the distributor itself ?
Jul 4, 2010 at 9:06 AM
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DOOWOPMAC
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Yes
Jul 4, 2010 at 9:11 AM
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JIM SHIRRON
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Check to be sure you have it when you're cranking as well as ignition on
Jul 4, 2010 at 9:15 AM
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DOOWOPMAC
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We've done that check also. Have fire to the distributor cap, but still no fire to the plugs once the cap is reinstalled.
Jul 4, 2010 at 9:18 AM
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JIM SHIRRON
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You lost plug fire when you changed cap & rotor,go back over that, re-install your old parts,they worked. Pay close attention to coil terminals in cap, they're easy to miss
Jul 4, 2010 at 9:44 AM
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DOOWOPMAC
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[quote:5143bbe8eb="Doowopmac"]We've done that check also. Have fire to the distributor cap, but still no fire to the plugs once the cap is reinstalled.[/quote:5143bbe8eb]
Jul 4, 2010 at 9:54 AM
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JIM SHIRRON
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Have you checked the button underneath the coil really close?
Jul 4, 2010 at 10:07 AM
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DOOWOPMAC
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Yes, I learned the hard way on that, I ended up buying a second coil because I didn't install the first correctly
Jul 4, 2010 at 10:25 AM
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DOOWOPMAC
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Correction, I had to purchase another cap not another coil
Jul 4, 2010 at 10:26 AM
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JIM SHIRRON
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Check your coil w/an ohmmeter, be sure its not open. You may have to pull the dist. out, use jumpers for power & ground, and play w/it til it works.
Jul 4, 2010 at 10:52 AM
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DOOWOPMAC
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Getting off work, I'll check your reply later this evening, when I get to my home. Everything you've asked previously, has already been tried.
Jul 4, 2010 at 11:25 AM
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DOOWOPMAC
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i'M STARTING FROM SCRATCH AGAIN, I'M TAKING EVERYTHING APART TO MAKE SURE EVERYTHING IS INSTALLED CORRECTLY.
Jul 5, 2010 at 3:18 PM
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JIM SHIRRON
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I'm at a loss, unless you have a module problem. Keep me posted on what you find out, I want to know.
Jul 5, 2010 at 6:39 PM
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DOOWOPMAC
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The solution to my problem was resolved by disconnecting the four prong plug from the ecm module, which had evidently shorted out, causing no fire to be transferred to the spark plugs and installing a distributor without this connector. We used a another distributor ranging in years fron 1978 to the 80's. It beat having to buy an ECM module which was more han I was willing to pay. So far , so good, running like a champ.
Jul 9, 2010 at 8:07 PM
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KHLOW2008
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Has the problem been resolved?
Jul 20, 2010 at 7:32 AM