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Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 47631
Experience:  16 yrs. experience with auto, manual, & CVT drivelines
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Ford F150 Lariat: 2000 f150 5.4 XXXXX- codes P1747,P0750,P0755,P0743

Resolved Question:

2000 f150 5.4 XXXXX- codes P1747,P0750,P0755,P0743 come up.O/D light flashing, trucks runs fine in park and nuetral, put in drive/reverse runs rich and very poor does not have power to move. Pulled trans elect plug from right side of trans, truck runs and drives fine but stuck in secound gear.Checked trans wiring,found short in yellow wire going from PCM to EPC solenoid,changed EPC solenoid, still the same, changed hard wire loom in trans, still the same. Do you have any suggestions. Jeff Gruber
Submitted: 5 years ago.
Category: Transmissions
Expert:  Chris (aka- Moose) replied 5 years ago.

Hello, I'm Chris.
I will do my best to answer your question fast and accurate using the info you have provided. Thanks for visiting Just Answer.


Did you do anything prior to this occurring like change the engine or trans or go off road?


Are there any other codes like engine codes for the O2 sensors and EVAP and EGR etc...?


Customer: replied 5 years ago.
The truck was stolen, recovered stuck behind a house in the mud, Exaust was cut off but has been replaced with new with all cats. The underside of truck was not muddy at all, I know they thrashed on it for a while. There where other codes -P0443,P01451,P1409 and the 4 codes for o2 sensors
Expert:  Chris (aka- Moose) replied 5 years ago.

Your concern is one wire. Look over the diagrams below and you will see the wire in question and how its effecting all these components and codes. The fuse is either blown or the circuit is chaffed or shorted and drawing almost enough amps to blow the fuse. I would check especially near all your O2 sensor wiring.



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Customer: replied 5 years ago.
Would the possible blown fuse be an amp fuse or relay. In engine compartment or under dash. do you have name of possible fuse or # XXXXX fuse or relay for location and if you think it might be something else. Thanks
Expert:  Chris (aka- Moose) replied 5 years ago.

It would be fuse 23 under the hood if it is blown, thats in the 1st diagram I sent.


I am 95% sure its this circuit, if that fuse is not blown then there is something drawing so much power on that circuit its near 14amps just shy of blowing the fuse but enough to not leave enough power for each component to work correct.

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