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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
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Old 03-13-2011, 12:03 PM
m@m m@m is offline
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transfer case motor

my 04 4x4 is still engaging off agin on agin i pluged the vacum line still nothing.then i pulled out all fuses related to 4x4 sys still nothing
my ? is when i looked at the transfer case i noticed a small looking motor
along side .dose this motor engage the 4x4.if so can i disconnected the harness until i replace the motor..
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Old 03-13-2011, 04:08 PM
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gcozmo gcozmo is offline
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Whenever your 4x4 is trying to engage everything points towards the IWE's in the front. I had an issue with mine a couple weeks back and thought for sure it was an IWE problem and the verdict is still out. When I took it to the dealer they replaced the shift motor that you speak of and they said that they have problems with them "hunting" for position and can make a very similar noise. I have driven well over a 100 miles and not had a sound since getting it back.
To answer your question- from what I understand if you pull the vacuum lines off then the IWE's will engage and will not do the grinding noise. If you unplug the motor on the transfer case I am not sure that will make a difference if you have the same issue I had.
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'07 F150, Screw FX4, 6.5', 5.4 V8, 3.73 LS, 4x4
'04 Explorer Limited, 4.6 V8, 4X4

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Old 03-13-2011, 04:53 PM
m@m m@m is offline
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thanks for the reply.i did shutoff the vacum that goes to the iwes.still grinding.then i unpluged all the fuses that apply to the 4x4 sys. still grinding.then disconnected the trans motor .still grinding. unpluged both vacum lines from frt wheels.grinding not as bad. i still have to buy a test pump.need my trk for work.how much $$ was the transfer motor ?
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Old 03-13-2011, 06:22 PM
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gcozmo gcozmo is offline
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Sorry, I don't know, it was covered under warranty. If you unhook the vacuum lines at the wheels then they should engage fully so there should be no grinding at all. Are you sure the noise is coming from the IWE's? Good Luck
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'07 F150, Screw FX4, 6.5', 5.4 V8, 3.73 LS, 4x4
'04 Explorer Limited, 4.6 V8, 4X4

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Old 03-13-2011, 06:22 PM
 
 
 
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