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Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator SPONSORED BY:

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  #136  
Old 12-15-2013, 09:23 PM
glen615 glen615 is offline
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[QUOTE=alloro;13847362]Take another reading of the fuel pressure. You wouldn't be the first person to get a bad pump.[/

Fuel pressure is at about 38psi
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  #137  
Old 12-17-2013, 04:23 PM
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ajonesnv ajonesnv is offline
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Quote:
Originally Posted by alloro View Post
If I lived in Vegas I could think of a lot better things to do with my time than read this forum from top to bottom!

Glad you got it fixed for so little.
Yes, Im only this far through the thread...and I promise if you lived here you would be reading it too.
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  #138  
Old 02-09-2014, 07:14 PM
mesbe1972 mesbe1972 is offline
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I have had the engine lights on my Expy for the last year. After replacing all of the above mentioned items they told me I had to replace the entire muffler system. 1800 was a rough estimate of what the said someone else paid not that long ago. Going under the hood tomorrow and looking for this little part and replacing.
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  #139  
Old 02-19-2014, 10:33 PM
darryl123 darryl123 is offline
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I just had the po171 come up and it was the wire that goes to the maf had come out of the tube so there was a large leak after the maf sensor. just pushed it back in and cleared the code.
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  #140  
Old 03-01-2014, 04:16 PM
Icefan71 Icefan71 is offline
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Check engine light with the "system too lean bank 1, system too lean bank 2" codes the other day. I got these a couple of years ago. It was the vacuum line elbow at the rear of the passenger side head. Since then, I changed out all the vacuum line I could find. This time it was the intake tube going into the throttle body. Last time I had it off, I must have kinked it putting it back on. Luckily I found one at a local u-pull junkyard for $5.
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  #141  
Old 03-02-2014, 12:28 PM
alloro alloro is offline
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Quote:
Originally Posted by Icefan71 View Post
This time it was the intake tube going into the throttle body. Last time I had it off, I must have kinked it putting it back on.
That looks like heat damage to me. Was that damaged section anywhere near the exhaust manifold or EGR tube?
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  #142  
Old 03-02-2014, 03:58 PM
Icefan71 Icefan71 is offline
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That looks like heat damage to me. Was that damaged section anywhere near the exhaust manifold or EGR tube?
No it wasn't near any heat source. When I found it, it was folded over underneath at the 6 o'clock position. I unfolded it and it started to break apart. I put it back on, duct taped it, then put the clamp back on. It looks worse in the pic because I peeled off the duct tape and took some little pieces of the hose with it.
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  #143  
Old 04-04-2014, 10:27 AM
Jesse Magnussen Jesse Magnussen is offline
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I seem to have the same symptoms many of you have experienced... Weird/rough idle at times, loss of power!!! I have limited mechanical experience but based on what I have read doing searches, if this is the problem even I should be able to fix this. Only question is most hear seam to have the 5.4L does this apply to my 4.6L (windsor) 4x4 156,000m? I should mention I have not seen a CEL to date but we did just buy this a month ago... Today I will be cleaning the MAS, replacing the PCV Valve and the Air Filter?
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  #144  
Old 08-08-2014, 02:13 AM
wobblyBit wobblyBit is offline
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I had a PO171 error on a 99 Expedition 5.4. The issue turned out to be a loose hose in the throttle body. I pushed it back in, cleared the code, and have had no problems since.

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99 Expedition 5.4 loose hose in throttle body causing PO171 error
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Old 08-08-2014, 02:13 AM
 
 
 
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171, 1998, 2003, 98, bank, code, engine, expedition, fix, ford, lean, locate, p0171, po171, po174, sensor, system

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