70 F100 351 has not been started for a year Does not appear to have spark at spark plugs checked wires at coil and distributer all connected correctly y suggestions ???


Asked by Nov 30, 2013 at 07:51 PM about the 1979 Ford F-100

Question type: Maintenance & Repair

14 Answers


Have you remove dist cap and dried the condensation out of it? Also clean the corrosion off the tips in the cap and rotor button.


Thank you I'll give it a try and let you know ...Regards Dennis

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Replace the points and condenser, cap and rotor, and you most likely will wind up replacing the ignition wires due to corrosion.

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Oh and fresh gas is a must. Clean out tank and then add new gas with some sea foam mixed in.


Might want to check into a conversion to get away from the points. Should be able to get a direct bolt in. I think the last one I bought was about $30 or so.(it's been a while) but was well worth it. Never did have points issues again. Thanks tennisshoes I missed just how old it was.


Cleaned rotor etc put in new fuel will try new points condenser tomorrow Thanks all..

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What do you mean about "Conversion" Just had a closer look in distributor and wiring to coil could not find condenser and without removing distributer could not see normal point system ?? Photo enclosed ...

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It appears it has already been converted to electronic ignition. That's a good thing.

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If cap and rotor in descent shape I would just clean them up and re install them. If not purchase new ones. With your ignition having been converted already you will not have points and condenser in it any more.

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Should I replace the coil ???


I would not think so. It should be ok. Look closely at the spark plugs and plug wires tho.

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Thanks will do....


If after all this you still don't have spark on the plugs check and make sure you have 12 volts going to the coil.


If the wiring hasn't been modified it will not have battery voltage at the coil, it will be around 9 volts, if you have power at the coil positive then you need to check to see if you are getting a negative trigger signal from the aftermarket module assembly to the coil, if there is no trigger signal then double check the ignition modules wiring, make sure it has battery power and grounded good, if no problem is found with the wiring then the control unit may be bad from just sitting. Judging from the pic of the pickup unit it looks like a older system, if it does check out bad Pertronics still makes them and they are a lot more reliable now.

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