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1983 - 2012 Ranger & B-Series All Ford Ranger and Mazda B-Series models

still pinging and p0401 code!

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Old Nov 15, 2005 | 10:28 AM
  #1  
sadrok's Avatar
sadrok
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still pinging and p0401 code!

2001 ranger 4.0L V6 "E" (vin code) I have replaced the EGR valve, replaced the spark plugs, cleaned the throttle body, cleaned the MAF, replaced all 3 o2 sensors, cleaned the PCV valve and replaced the upper intake gaskets. I still get pinging under moderate to heavy acceleration. I don't know what else to try. I am determined to fix this myself, I don't want to bring it to a mechanic and have him say "I just tweaked this and cleaned that... here's a bill for $300." Anything else other than replace the MAF?
 
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Old Nov 15, 2005 | 11:54 AM
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P0401 is often caused by a bad DPFE sensor, have you replaced that?
 
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Old Nov 15, 2005 | 12:26 PM
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is that the same thing as a Egr Valve Position Sensor? I didn't replace that yet.
 
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Old Nov 15, 2005 | 12:28 PM
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Yes, it's often called that.

Ford DPFE/EGR System Summary
 
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Old Nov 15, 2005 | 01:06 PM
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could the O2 sensors have gotten gunked up with all the cleaning i have tried? If so can i clean them up with anything, contact cleaner brake cleaner, throttle body cleaner...
 
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Old Nov 15, 2005 | 01:13 PM
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well i dont know what kinda ping you are talking about but... if it is the same kind as my 99 had it is not good. i had a 1999 xlt that on clod starts and "hevey " accleration it woud ping. took it to to ford and they said that it looked like mt head gaskett was starting to leak whitch is putting antifreeze into my oil. i said ok fix it. well about 2000.00 lator it was fixed. ok no problem. about 1 month or so lator it started again. went to chat with a buddy of mine and he said "TRADE IT IN' look s like the engin was on it's last leg and the berring were ready to spin. so i did good buy 1999 ranger xlt Hello 2004 fx4
 
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