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Dr. Hamman
Dr. Hamman, Technician
Category: Classic Car
Satisfied Customers: 2436
Experience:  I have 30 years experience repairing, restoring, and customizing cars, and pickup trucks.
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Car won't fire 390 ford changed over to hei. 1964 galaxie

Customer Question

Car won't fire 390 ford changed over to hei.
JA: What is the model/year of your Ford?
Customer: 1964 galaxie 500
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes, new coil new distributor new key switch
JA: Any trouble turning the key in the ignition? Do you have a key fob?
Customer: No trouble
JA: Anything else you think the mechanic should know?
Customer: Fire is going every where except plugs
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Mechanic about your situation and then connect you two.
Submitted: 5 months ago.
Category: Classic Car
Expert:  Mike S. replied 5 months ago.

Do you have voltage to the positive side of the ignition coil and distributor when the key is on both start and run?

If so, hook up a voltmeter or 12 volt test light to either the tach terminal or the negative side of the coil and see if you get a cranking fluctuation of the voltmeter or a flashing test light while cranking the engine over. If not, the primary ignition circuit is not doing it's job, and it could be either the pickup coil and/or the ignition module depending on what type of HEI this is. If you are getting a cranking signal, then the problem lies with the secondary ignition which is the high voltage 1/2 of the ignition coil, the coil wire is one, distributor rotor, wires and plugs.

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