My 78 Ford F100 will not start. I have replaced coil, battery, and the electronic unit that plugs into the wiring harness for the distributor. ( I'm not sure what you call it.) My truck will turn over great but it will not fire off. What else can I check? It was running great until I turned it off at the gas station and it would not crank again. Please Help!!
Looking at all you have replaced I would suspect you have overlooked the dist stator. Under your dist cap is where you will find it. It was common back on the older F 100 when you replaced the Ignition module you also replaced the stator. The stator provides the signal to make the module fire the coil.