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Old 05-19-2011, 11:41 PM   #1
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Default 2003 f150 egr issue

2003 f150 throwing a code egr sensor A low voltage ??
I dont want to fish so im asking here. EGR,? DPFE,? whats your input
5.4l 4x4 i clear the code comes back 2days later
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Old 06-17-2011, 04:05 AM   #2
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Originally Posted by lbyeah
2003 f150 throwing a code egr sensor A low voltage ??
I dont want to fish so im asking here. EGR,? DPFE,? whats your input
5.4l 4x4 i clear the code comes back 2days later
DPFE Differential Pressure Flow EGR Sensor. EGR Exhaust Gas Recirculation Valve. Have the same code on my 03 FX4 5.4L. From what I've read on here if you aren't noticing any issues with your truck it's just the dpfe sensor and not your actual EGR valve. Seems to be an easy fix if you can find it. I still have no clue where mine is but I've put about 2000 miles on my truck since I got that code with no adverse effects
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Old 06-17-2011, 04:47 AM   #3
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Originally Posted by CavScout97 View Post
DPFE Differential Pressure Flow EGR Sensor. EGR Exhaust Gas Recirculation Valve. Have the same code on my 03 FX4 5.4L. From what I've read on here if you aren't noticing any issues with your truck it's just the dpfe sensor and not your actual EGR valve. Seems to be an easy fix if you can find it. I still have no clue where mine is but I've put about 2000 miles on my truck since I got that code with no adverse effects
had the same code and first replaced the ERG that worked for a few days. It came back, I then put a tyerap around the ERG tube and been fine now for two years.
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Old 06-17-2011, 09:59 AM   #4
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Originally Posted by CavScout97 View Post
DPFE Differential Pressure Flow EGR Sensor. EGR Exhaust Gas Recirculation Valve. Have the same code on my 03 FX4 5.4L. From what I've read on here if you aren't noticing any issues with your truck it's just the dpfe sensor and not your actual EGR valve. Seems to be an easy fix if you can find it. I still have no clue where mine is but I've put about 2000 miles on my truck since I got that code with no adverse effects
I have this same issue in my '01...although I haven't really had the recent time to fix this.. but I agree, I think it's the DPFE sensor...which mine is located on the drivers side of the engine, back towards the fire wall. It looks like a square chip with two small pipes that run vertically down to the exhaust... hope that helps.
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Old 06-17-2011, 12:40 PM   #5
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replace DPFE first, and then if that doesn't fix it replace the EGR. The EGR ports can also get plugged up easily.
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Old 06-18-2011, 11:53 PM   #6
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I'm not that familiar with that code description. What's the actual code designation? P****???

It's common to suspect a DPFE, but there are many other issues at work here. Also, DO NOT start replacing parts. Your truck can become the worlds most expensive dart board if you start throwing parts at it. Diagnose it properly and replace just the part that's bad. EGR valves are simple to diagnose and seldom ever fail. I've only ever replaced one on an F-150 in my career and that's on my truck. I replaced it cuz I was replacing the pipe and with 190k I figured why not.
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Old 06-19-2011, 01:18 AM   #7
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Mine gave a P0405
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Old 06-19-2011, 01:18 AM
 
 
 
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