Hey everyone, I have 91 f250 with a 351w in it. Dual tanksim having alot of trouble. My fuel pumps wong stop priming, I turn my key on and it doesnt shut off til I turn my key off. And ihace power going into my distributor cap but nothing coming out of it. It all happened after I used barsleak to fix a radiator leak.

 

And let me guess, no matter how long you crank the motor it won't fire? You have one of 2 possible problems and it's the second one if the engine doesn't fire. Either your fuel pump relay is stuck closed or the driver for the fuel pump circuit in the PCM is shorted, and if that happens the computer won't allow the engine to start and it(the PCM) has to be replaced.

 

Is the pcm the eec?

 

It doesnt fire. It cranks but wont start. Where is the pcm located at?

 

Yes, and it's located in the drivers side kick panel, to remove it disconnect the wiring harness in the engine bay first(after disconnecting the battery) and then pull the computer out from inside the cab.