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Explorer, Sport Trac, Mountaineer & Aviator 1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer

Code P0401

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Old Jun 4, 2003 | 06:58 PM
  #1  
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bunavicz
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From: Mass.
Code P0401

My check engine light turned on, checked the code and it came up with P0401, EGR insufficent flow. I replaced the EGR vlave, and the light came back on the next day. Now, I'm kinda comfused cause I know there are a few parts to the EGR system, but now the question is what to replace next?
 
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Old Jun 5, 2003 | 01:18 AM
  #2  
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TOBOY
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From: Toronto,ON, Canada
Code P0401

REPLACE THE EGR PRESSURE REGULATOR!!! Theat's the metal rectangular piece ... it has been updated with a plastic one ...
Part # F77Z-9J460-AB
To it there is t rubber hoses that have to be hooked up to it

I paid $116.34 plus 15% tax for it. That's Canadian dollars, u do the math =) Unfortunately, it's a dealer only part.

The EGR valve itself is the last thing to go.

Good luck !!
 
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Old Jun 5, 2003 | 01:22 AM
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TOBOY
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From: Toronto,ON, Canada
Code P0401

By the way, I have a 96' Explorer (4.0L V6 OHV). Another thing, I asked the parts counter girl if they sell a lot of these & she said yeah .... compared to the EGR & EGR vac. regulator... This is the second time I replaced mine & in both times I saw some sort of mineral buildup in the lines of the part. Maybe this is why they make them from plastic now....
 
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