Hello all! I'm havin trouble... - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

roldaphat9 · 09-23-2006, 19:59

First off This is my first post and would like to say hey to everyone! And second.. I'm havin trouble with my 2001 Ranger, its got about 95k on it and the check engine light was on and the code was for that differential flow box or whatever it is, the little aluminum one right in front on the top with the 2 hoses on it, well it was clogged with crap so i cleaned it and disc conn. the battery to reset the CEL, hasnt came on since, but the truck still however is running bad....It will run fine up intil going up a steep hill or getting on the gas at about 4k and higher it cuts out really bad and like jerks the truck... really annoying. IF anyone has any ideas please let me know, i was thinkin maybe the fuel filter?

Johnny Mullet · 09-24-2006, 16:36

That "flow box" is the DPFE sensor. That would not affect your engine in how it runs. Hook a fuel pressure guage to the fuel rail, tape it to the windshield, and take it for a ride. Monitor the pressure when you hit a hill or it starts bucking. Could be a clogged filter or bad pump.

roldaphat9 · 09-28-2006, 23:28

where would the fuel filter be located? under neath on the drivers side.. on the inside of the frame there?

Johnny Mullet · 09-30-2006, 22:01

Fule filter is located on the driver side inside frame rail under the driver door.

mhein · 10-04-2006, 17:34

Hey Guys,

Quote:

Originally Posted by Mullet Man

That "flow box" is the DPFE sensor. That would not affect your engine in how it runs. Hook a fuel pressure guage to the fuel rail, tape it to the windshield, and take it for a ride. Monitor the pressure when you hit a hill or it starts bucking. Could be a clogged filter or bad pump.

Just for the hey of it... try testing the fuel pressure regulator as well.