Question about 1989 Ford F 250
Check to see if there is a dwell signal from the distributor. Use a test light and ground the test light lead to a good ground, and then using the test light check the Neg. (-) side of the ignition coil, have someone crank the engine over and you should see the test light blink off and on showing that there is a dwell signal or "pulse" to the ignition coil.
If the test light stays steady and does not flash when the engine is cranking over, then the pick-up coil inside of the distributor is bad and you should replace it or the distributor.
Posted on Apr 29, 2010
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Posted on Jan 02, 2017
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