P40F3

P40F3 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P40F3 Diagnosis

The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.The BHM supplies battery power on this circuit when the key is in the RUN or CRANK positions. Troubleshoot for a wiring fault shorting this circuit to ground or for too many optional circuits spliced into it that is causing the BHM to turn it off.

When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set.

Ford P40F3 Fault Code Meaning :

Ford P40F3 Symptoms :

Ford P40F3 Reasons :

How To Fix Ford P40F3 Trouble Code ?

Which Ford cars have the code P40F3?

  • P40F3 Ford Aerostar
  • P40F3 Ford Bronco
  • P40F3 Ford C-Max
  • P40F3 Ford C-Max Energi
  • P40F3 Ford C-Max Hybrid
  • P40F3 Ford Contour
  • P40F3 Ford Crown Victoria
  • P40F3 Ford EcoSport
  • P40F3 Ford Econoline
  • P40F3 Ford Edge
  • P40F3 Ford Escape
  • P40F3 Ford Escape Hybrid
  • P40F3 Ford Escort
  • P40F3 Ford Everest
  • P40F3 Ford Excursion
  • P40F3 Ford Expedition
  • P40F3 Ford Explorer
  • P40F3 Ford Explorer Sport Trac
  • P40F3 Ford F-150
  • P40F3 Ford F-250
  • P40F3 Ford F-350
  • P40F3 Ford Fiesta
  • P40F3 Ford Flex
  • P40F3 Ford Focus
  • P40F3 Ford Focus Electric
  • P40F3 Ford Freestar
  • P40F3 Ford Freestyle
  • P40F3 Ford Fusion
  • P40F3 Ford Fusion Energi
  • P40F3 Ford Fusion Hybrid
  • P40F3 Ford Fusion Plug-In Hybrid
  • P40F3 Ford GT
  • P40F3 Ford Mustang
  • P40F3 Ford Mustang Mach-E
  • P40F3 Ford Mystique
  • P40F3 Ford Probe
  • P40F3 Ford Ranger
  • P40F3 Ford Taurus
  • P40F3 Ford Taurus X
  • P40F3 Ford Tempo
  • P40F3 Ford Thunderbird
  • P40F3 Ford Transit
  • P40F3 Ford Transit Connect
  • P40F3 Ford Windstar

A code is a fault code and it indicates that something has gone wrong with your car's engine.

It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.

You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.

A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.