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need help guys, trouble codes !!!

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need help guys, trouble codes !!!

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Old 04-10-2007, 01:15 PM
  #1  
ROB 98GT
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Join Date: Jun 2005
Location: Mustang Valley
Posts: 458
Default need help guys, trouble codes !!!

I keep on getting these trouble codes :

p1729 4x4l switch
p1443 evaporative emissions system control valve (low or no flow)

I tried calling ford but they didn't really want to help me (surprise). I erase them with my predater and they come back usually after a couple days to a week.

Does anybody know what they mean and how to fix it? Thank you.
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Old 04-10-2007, 02:20 PM
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dochol01
 
Join Date: Mar 2005
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Default RE: need help guys, trouble codes !!!

I'm not sure about the P1729, but theP1443 code on mine required the replacement of the emmisions control valve, $26.00 at NAPA. There is a TSB on some other ford vehiecle throwing an erroneous P1729 code.
[*]TSB #14310 -- SOME VEHICLES MAY EXHIBIT AN INCORRECT P1729 (4X4 LOW SWITCH) DIAGNOSTIC TROUBLE CODE (DTC) IN CONTINUES MEMORY. *TT (NHTSA ID #620413, JANUARY 01 2000)
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Old 04-10-2007, 02:36 PM
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ROB 98GT
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Default RE: need help guys, trouble codes !!!

Thanks for the info. Do you know were the emmisions control valve is?
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Old 04-10-2007, 05:59 PM
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ROB 98GT
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Default RE: need help guys, trouble codes !!!

bump
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Old 04-10-2007, 06:08 PM
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gt96stang
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Default RE: need help guys, trouble codes !!!

hey... just replied over at sn95fourms... But anyways, you will find it coming off the back of the intake plenum and it will be close to the firewall... It's black and has a connection running into it and 2 hoses..
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