04 ford explorer sport trac adrenaline series

You need three things for an engine to run. Fuel, spark, and compression. That's it. So let's try to figure out what's missing. Spray a little starting fluid down the throttle body. It should run a few seconds on that. Does it? If so, you have a fuel problem. If not you either have an ignition problem (no spark) or no compression. To test for spark, remove one of the spark plugs. Any one will do. Connect the spark plug wire back to the spark plug and lay the spark plug on something metal, that's not painted. Crank the engine. You should see a bright rhythmic spark as the engine cranks over. You may even be able to hear it. SNAP, SNAP, SNAP. If you don't have spark you have an ignition problem. If you do have spark it's time for a compression test. If all cylinders test very low or zero the timing chain has jumped. Hope that helps! Jim