Join Date: Jan 2006
Location: Sierra Foothills CA
Bronco Info: 1989 Eddie Bauer
Take a spark plug wire off a plug and put a screwdriver (something insulated) in the wire. Have someone crank it over while you hold the screwdriver close (1/4") to some metal. Be careful, this can shock like hell if you touch it. There should be a little arc to the metal. If there is no spark it could be: Coil, loose wire, broken wire from ignition switch to coil, ignition module, distributor...list goes on. Once I had to have mine towed home, it was the coil wire not pushed all the way into the coil.
You need a Volt-Ohm meter to check voltages. I used to use a 12v bulb on a couple clippy wires, ground the negative and poke around to find if the voltage to coil stops somewhere.
Sometimes smelling gas doesn't mean that the pumps are working properly. I have had mine not start when hot, it was the "in tank" fuel pump getting weak. Had gas at the rails, but not enough pressure. There is a gauge that is used for pressure testing.
Do you have a code reader? This might tell you if a (?) sensor is bad. Won't tell you if a wire is loose or broken. Good Luck.