1997 - 2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

Its back #$@ !!!

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Feb 21, 2009 | 04:50 PM

#1

uno

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Its back #$@ !!!

P1506.... after new IAC and TPS, can not locate a vac leak. IDLE is back to 1100 rpm on my 2001 5.4 expedition, HELP ! did anyone else have same issue/same truck ?

Last edited by uno; Feb 21, 2009 at 05:20 PM. Reason: rpm

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Old

Feb 21, 2009 | 07:33 PM

#2

uno

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where is the pcv on the driver's side just about half way down the valve covers right ?

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Old

Feb 21, 2009 | 09:50 PM

#3

madsonp

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From: Billings, Montana

Club FTE Gold Member

Passinger side.

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Feb 22, 2009 | 07:00 AM

#4

shorebird

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From: Long Beach, Ms.

Take a can of WD-40 and while the engine is running work your way slowly around the engine spraying the vacuum system. Listen for a change in the idle. When you hear the change you have found the leak.

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Feb 22, 2009 | 08:00 PM

#5

uno

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solved

after a new TPS and IAC........ PCV for a whopping $3 base idle back to 600-650.

problem solved thank guys.

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