87 f-150 no spark
sbradford2k
01-22-2006, 05:53 PM
i am working on an 87 f150 EFI, 300-6 i got it from a buddy of mine, it has good compression, good fuel pressure, but it has no spark, i changed the coil, module, plugs, wires, cap, rotor, pickup, ballast resistor, and borrowed a computer, still no spark, any ideas would be appriciated....
mechhound
01-23-2006, 12:46 AM
Start at the beginning (well almost) first make sure you are getting current to the coil from the ignition switch. Unhook the connection on the coil with the 2 small wires hooked to it. One of the wires comes from the ignition switch, the other wire goes to the distributor. The one coming from the ignition switch, should light a test light with the ignition switch turned on. I would first perform this test, make sure your ignition switch is turned on and your test light has a good ground. Post back with any questions, I have owned (still own) a few Fords of this vintage and have gotten a good education on their ignition system.
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