What could be my problem

[Douggarvin]

My ford f53 engine does not start. I've replaced both solenoids, the starter, and the ignition switch. What do I look at next.

 

[sanda]

Will it turn over?

 

[Dan_Frisbie]

Gasoline engines need fuel, air, and spark.
If your starter is spinning it, figure out which of the three are not.

 

[Rich W.]

sounds to me like its not turning over since he was focused on the starter. So electrical? More info definitely needed.

 

[Douggarvin]

It dead when the key is turned nothing. Battery is good. There is nothing. Instrument panel lites up, lights work. What electrical checks ( be specific). Don't have a wiring schematic

 

[GTS225]

Auto trans? Maybe neutral safety switch?

Roger

 

[sanda]

It dead when the key is turned nothing. Battery is good. There is nothing. Instrument panel lites up, lights work. What electrical checks ( be specific). Don't have a wiring schematic

First check would be to put trans into neutral and try to start. If that's not the problem double check battery. You can have voltage but no amperage with a bad battery. These are the simplest things to check and go from there.

 

[Dan_Frisbie]

Check 12 volts at the solenoid ”start” terminal When the key is in the “Start” position.
You can also “jump” the solenoid with a pair of pliers.

 

[Rich W.]

The problem here is parts swapping prior to diagnosis. It seems clear there is an electrical problem somewhere, and there are quite a few possibilities as the above posts pointed out, and the old starter and ignition switch were probably still good. Replacing components of a system until you find the problem is not the preferred method of diagnosis.

 

[Douggarvin]

I have to jump either solenoid to start it..can the problem be in the pcm

 

[Douggarvin]

It dead when the key is turned nothing. Battery is good. There is nothing. Instrument panel lites up, lights work. What electrical checks ( be specific). Don't have a wiring schematic

No wiring schematic.that my problem I'm guessing

 

[Rich W.]

No wiring schematic.that my problem I'm guessing

Well the solenoid jumping is a very good clue. Does it start when you do that or just turn over? If it starts when jumping it then you have power to everything accept the ”S” terminal when the key is on, and that would be the one to trace back. This is all still in the “guess” category of course and you may already know this, but it’s all I got right now.

 

[Douggarvin]

Thanks for the onfo

 

[Douggarvin]

The problem here is parts swapping prior to diagnosis. It seems clear there is an electrical problem somewhere, and there are quite a few possibilities as the above posts pointed out, and the old starter and ignition switch were probably still good. Replacing components of a system until you find the problem is not the preferred method of diagnosis.

Where can a person get a wiring diagram or schmatic