Begin with the basics: air, fuel, compression, ignition and timing. Test for spark to the spark plugs, first. If you have spark, removed the top of the air cleaner and air filter, spray carb cleaner or starting fluid into the engine and see if the engine will fire; if it does, you have a fuel delivery issue. If it doesn't, then get a compression tester and check engine compression per the factory service manual procedure (Nico Club has free, online factory service manuals at their site which will give you compression procedure and specs, as well as "crank/no start" diagostics). If compression is low, due a wet compression test (add a small amount of oil into the cylinders and redo the compression test). If the wet test fails, you may have bad rings, a hole in a piston, or the cam/crank timing is off. It's often a lot cheaper to diagnose first than to simply change parts until the problem is fixed.I have the same engine and my truck wont start so I started replacing everything with a new part. (SERIOUSLY) The crazy thing is that the Fusible link that leads from the truck and not the battery post (because I just replaced that with a new one) seems to have been burned at some point. I was wondering if anyone can post a picture of the inside of the connector. I am trying to see if maybe a lead has fallen out or has been burned out of existence.
Thank you all for any help.
Oh I have replaced relays, fuel pump, fuel filters, distributor and cap, spark plugs and wires, air filter, radiator, fresh gas, etc.,etc.,etc.
The truck just continues to turn over and over but no start.