1991 bronco no crank no start.

[c myers]

I have a 91 bronco with the 5.0 efi with terrible electrical problems , so many that it must be something simple , I'm simple, but after chasing power, grounds, relays , still nothing. Please help.

 

[Tiha]

Do accessories work like dome light? Headlights, Wipers radio?

 

[c myers]

yes, everything but engine controls

 

[c myers]

even did the obd 1 ce diagnostic which worked, but stagnant codes low exhaust temp, rich fuel all in a no run scenario

 

[Tiha]

Sounds like it could be a bad fender mounted solenoid.

Battery cable goes to one stud. The other big stud goes to the starter.

The little stud comes from the ignition switch.

Probably start there. You can jumper across the two big terminals with a ***** driver or pliers or something to see it will turn over.

 

[c myers]

not getting power to s terminal jumper to s terminal cranks it over, power to and thru the ignition switch, not making it to the solenoid.

 

[c myers]

also power to and thru pcm

 

[c myers]

starting to think ecm issue

 

[Tiha]

Do you have a wiring diagram?

Didn't think the ECM had anything to do with cranking.

Neutral safety switch?