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2.3L & 2.5L I4 Tech General discussion of 2.3L and 2.5L I4 Ford Ranger engines.

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Old 10-10-2008
Redbeard90's Avatar
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Join Date: Aug 2007
Location: Springfield, MO
Posts: 37

I copied the following from a different post. It's exactly what my truck does. What is a DPFE? I'll try unplugging the vacuum line from the EGR valve and see what that does.

Is this a stuttering while maintaining a steady speed, just barely on the throttle?

Could be EGR. Pull the vaccuum line off the EGR valve and plug the line.

Drive it for a day or so like that; ignore the CEL that results.

I've seen a "going bad" DPFE cause that. Feels like trailer-hitching, as though you are pressing/releasing the gas pedal faster than humanly possible. Goes away completely at WOT (floored gas pedal).
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Old 10-10-2008
Dustin S's Avatar
Join Date: Nov 2007
Location: trenton,GA
Posts: 724
Originally Posted by Redbeard90 View Post
What is a DPFE?
Ford Differential Pressure Feedback EGR, IIRC.

Last edited by Dustin S; 10-10-2008 at 10:16 PM.
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