Does anyone know the Motorcraft part number for the DPFE used on an 01 Lightning? Everyone but the Ford dealer tells me the Lightnings take the same DPFE as the NA 5.4 F150s. The dealer tells me they are different and wants 50% more for the Lightning unit. Help prevent to stealer from making too much...

 

How about , Whats a DPFE? I been around awhile and have never seen this.

 

Had to google it myself: Differential Pressure Feedback EGR (sensor)

 

What do’s the truck do when this unit goes bad????
I mean maybe besides illuminating the check engine light???

 

its the same as a regular 5.4 F77Z9J460AB we have them priced pretty low. Check us out www.TascaFordParts.com

 

Basically the DPFE measures flow in the EGR tube. When the DPFE goes bad you can get a number of SES codes - 0171, 0174, 0401, 0402, 1401, 1402, and 1408. Basically the EGR valve does not know how much exhaust gas it is recirculating, if too much you get poor idle, low speed hesitation, surging, and potentially engine stall at idle, if too low you run lean at high RPM and can burn a piston in the extreme case.