2001 Explorer 6cyl, 4.O L trouble codes
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2001 Explorer 6cyl, 4.O L trouble codes - 9/12/2007 6:55:43 PM
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quint2
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Hi all, I have a 2001 Explorer Sport with a 6cyl/4.0L engine in it, i have been told it is what is called 2nd generation engine, because it replaced the original engine that was in these models. Anyways, my check engine light came on and i have recieved these codes, P0401, P0171, P0174. Any ideas on where and what i should be looking at to help solve them. Any and all help is greatly appreciated. Thank you in advance.
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RE: 2001 Explorer 6cyl, 4.O L trouble codes - 9/13/2007 4:21:10 AM
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Use Common Sense
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I'd start by replacing the DPFE. This is a common code generator for these codes.
P0401
Exhaust Gas Recirculation Flow Insufficient Detected
P0171
System too Lean (Bank 1)
P0174
System too Lean (Bank 2)
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2004 Freestar Limited 4.2 V6 w/Water Injection & Iridium plugs
2008 Mercury Sable 3.5 V6 w/Opened Air Box
AMSOIL Lubricants and Filters in everything
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RE: 2001 Explorer 6cyl, 4.O L trouble codes - 9/14/2007 5:41:23 AM
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quint2
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Ive been looking around online at the dpfe thingy, what is the difference between the one for $26.00 form autozone, and the one for about $72.00 from O'reilly's? That seems like a wide range in price for that thing. Is it worth it to spend the extra money on that part. Any ideas and help is appreciated. Thank you
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RE: 2001 Explorer 6cyl, 4.O L trouble codes - 9/14/2007 12:22:41 PM
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Use Common Sense
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Should be no difference except for the MFG of the unit and how much they want to charge you for it. I show Autozone listing the one for your vehicle for $48. You could cruise EBAY and pick one up for about $20-25. I just got one for my 2000 Taurus for $25 including shipping.
_____________________________
2004 Freestar Limited 4.2 V6 w/Water Injection & Iridium plugs
2008 Mercury Sable 3.5 V6 w/Opened Air Box
AMSOIL Lubricants and Filters in everything
"Have a good day, and a better one tomorrow"
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RE: 2001 Explorer 6cyl, 4.O L trouble codes - 9/14/2007 8:39:06 PM
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quint2
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Well i replaced the dpfe sensor, and erased the codes out of the system, i went driving for a while. The CEL light came back on, but this time it was just for 0171 and 0174. The 0401 was gone. Any ideas of what to look at?!
< Message edited by quint2 -- 9/14/2007 10:48:57 PM >
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RE: 2001 Explorer 6cyl, 4.O L trouble codes - 9/15/2007 4:19:02 PM
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way2old
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Look for a vacuum leak somewhere
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RE: 2001 Explorer 6cyl, 4.O L trouble codes - 9/15/2007 7:17:20 PM
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quint2
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Yea, i found some older posts and some other sites that said for the 2 codes i have now to do 1 of several things. Look at the MAF sensor and possibly clean it if need be. Check the O2 sensor, one of those may be bad, and the vacuum leak. So i guess i will hunt around for those problems the next few days.
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