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HOW TO: Diagnose your 4x4 system. ESOF

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Old 09-07-2018, 01:51 PM
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Originally Posted by VTX1800N1 View Post
IIRC, there is also a relay on the driver side fender well in a small box, I think one of two relays in that box, that controls the solenoid. It itself is controlled by the switch. It should be down near the ABS control module (will have all the brake lines running into/out of it). You may want to check that.
Would that be the GEM like in that schematic?
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Old 09-07-2018, 06:06 PM
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Originally Posted by johnday View Post
I hope that works for ya. I took one apart a while ago myself. Pretty cheap and simple guts. You'll find a coil spring, and an aluminum plunger/valve, you can't really see the coil, but it's there. Good luck with it!
THE MOTORCRAFT SOLENOID FIXED IT! Haha sorry for all caps but Iím excited. Iíll continue to monitor it but I went back and forth between 4x4 and 2wd several times and it unlocked each time. Drove around the block and went into 4x4 for a short distance and after switching back to 2wd I could hear the transfer case and the hubs disengage! Thank you John for all of the help. Crazy that it turned out to be just the brand of solenoid! I will never buy a Dorman part ever again. Straight OEM from here on out. Thanks again all!!
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Old 09-07-2018, 06:12 PM
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LOL, sounds like a 2 beer night!! That's great news, very glad ya got it fixed. I myself got bit by Dorman a couple times, never again. You can get a bad part from anyone, but Dorman it happens more than it should.
Enjoy it Brad.
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Old 09-07-2018, 06:15 PM
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Originally Posted by johnday View Post
LOL, sounds like a 2 beer night!! That's great news, very glad ya got it fixed. I myself got bit by Dorman a couple times, never again. You can get a bad part from anyone, but Dorman it happens more than it should.
Enjoy it Brad.
Next challenge is to get my money back from OíReilly for the bad Dorman. Lol
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Old 09-07-2018, 06:28 PM
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Originally Posted by brad0072 View Post

Next challenge is to get my money back from OíReilly for the bad Dorman. Lol
Good luck with that, how much did they run ya?
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Old 09-07-2018, 06:35 PM
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Originally Posted by johnday View Post
Good luck with that, how much did they run ya?
I think $35 ea. Found the motorcraft for $26 on Amazon!
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