I do thank you for your time in trying to help me figure this out. I had a major oil leak that was overlooked by a mechanic and finally found by another. my tension pulley broke and knocked a hole in the timing cover.the person that repaired the pulley didn't share the information about the hole in the cover so I thought the front seal had gone out . the mechanic that repaired the hole changed out the seals while he was there.Anyway my point is that the oil bath has created some problems with burning up alternators and could possibly have affected the sensors. or that is what I have been told.

 

Thanks for the update. On the coil issue, there is 12 volts going to the coils intermittently when the field is being built up. then the voltage is shut off and the secondary side of the coil field collapses causing the high voltage for the spark. You have to check this voltage while the engine is turning I think. I'm only a shadetree mechanic and others here are professionals. i think that is why Bluegrass advised using a timing light to check for the voltage.

 

Roadie, shade tree mechanic here too. grew up working on muscle cars in the seventies and eighties. I bought this truck in 2005 first with this kind of engine..I miss spark plug wires..my deal is I don't have a timing light and not sure how to test those coils and if there isn't fire going to them are they going to show voltage. And where does the fire come from to go to the coils? It's not like you have a coil to distributor to spark plug thing..but the same rule has to apply..the spark has to originate somewhere. I'm 62 getting a crash course on the blasted electronics of Ford.

 

Using a voltmeter, do you have 12 volts 'standing' on the coils, connectors?
They are fed from the same fused source as the fuel injectors.
Both the injectors and the coils should have power to them.
If not, there is a wire harness open some place.
.
If yes, then the computer is not pulsing the coils in the fire order.
What do you have?
Good luck.

 

thanks for all the help. Ms. Boop is up and running..crankshaft sensor it was..tired now.

 

and the thing about the CAT I didn't know cause I never had that problem arise..but she sounded like a diesel when she fired up..CAT replaced..Ms Boop is rocking..only I didn't get the connection to compressor on good so got to go back and put some oil back in my compressor and make sure it's on right so no leaks..just replaced the compressor two weeks ago..so I really don't want to burn it up

 

Congratulations!

 

If you opened the compressor coolant lines, the system must be pumped down to a high vacuum and refilled with proper coolant under pressure.
Disconnect the compressor clutch power until you get to address the situation.
That will prevent the compressor clutch from turning the compressor when you turn the dash control.
Good luck.

 

Will do..thanks.