no fire from coil

Asked by Dec 30, 2014 at 06:49 PM about the 1994 Ford F-150 S LB

Question type: Maintenance & Repair

1994 f150 4.9 replaced all ign parts no fire from coil

4 Answers

5,095

Have you checked the coil? http://www.autos.com/car-maintenance/how-to-test-an-ignition-coil

1 out of 1 people think this is helpful.
88,925

What have you replaced?

replaced control module coil pick up in dist.

88,925

OK disconnect the coil, turn key on and check for battery voltage on one of the wires, if you have battery voltage then put a test light in- between the contacts on the wire plug in, crank the engine and watch for the test lamp to flash, if it flashes then you have a bad coil even though it maybe new, if you don't get a flashing light, turn off the key and run an ohms test on the trigger signal wire from the ignition module to the coil, if open or high resistance repair wiring and repeat the test light test on the coil wire plug. Ford products have had a lot of module connector plug failures, that maybe where your problem is.

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