4x4 intermittant lock in
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Senior User
Joined: Oct 2007
Posts: 115
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4x4 intermittant lock in
I am having a problem with my 4x4 system and I'd like know what I should replace or check. For a while now the right side locks in and comes out on its own. When it locks in I hear a whirring noise like a wheel bearing going bad(already replaced that due to this!). Usually, it's not locked when I first get in the truck but after a while driving(5 - 30 mins) it will lock in. I had the same issue when I first got the truck a year ago and the actuators were replaced. Is this a common problem? Could one be gone already? Any insight is appreciated. Thanks.
Junior User
Joined: Aug 2006
Posts: 68
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Here ya go https://www.ford-trucks.com/forums/8...then-some.html
Remember to use the search function also. This question seems to come up weekly.
Remember to use the search function also. This question seems to come up weekly.
Laughing Gas
Joined: Dec 2009
Posts: 799
Likes: 13
From: East L.A.
EXACTLY the same thing happens with my left front occationally. ...Why I had a truck with manual locks before, no incessant twitchy techno-crap constantly fouling up. It is something to do with the IWE 4x4 system. If you already changed the actuator, read the thread "everything you ever wanted to know about the IWE". Good info, that is not even MENTIONED in the Haynes truck repair manual... so don't buy one of those expecting ANY information relating to the IWE system. It is all electro-vacuum operated.
Posting Guru
Joined: Sep 2006
Posts: 1,263
Likes: 17
From: New Castle, PA
You will probably want to check your lines, IWE solenoid, and check valves if the actuators have already been replaced. But, there is still a chance that it could be an actuator going again, i had one go 6 months after i replaced it. Read that thread about the IWE system, check some things out on your truck and you should be able to pin point the problem.
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Rando75
Clutch, Transmission, Differential, Axle & Transfer Case
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Aug 20, 2003 03:55 PM
