I have a 1986 ford f-150, i cant seem to get it to start i have fuel i have spark it turns over but wont fire could it be the ignition switch??? spark plugs? fuel pressure?? i cant think of anything and i dont wanna just go buy parts and put in it and hope it runs can someone help me?

 

Does it turn over with the key?
If it does, does your fuel pumps kick on (like make the funny sound)?

 

Is it safe to assume the engine is not fuel injected and has a carburetor?
Do you have the equipment to do a compression test?

 

I have a 1986 f150 with efi will run great then when I turn it off it wont start ive replaced the computer same thing maybe the icm that's my next replacement im puzzled

 

We need to determine if it has lost spark or fuel.
A shot of carb clnr into the intake , if it fires up , fuel problem.
If it doesn't , spark problem.
Once we know that we can proceed from there.