Mag-Hytec AAM 10.5 install & rear locker light

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ACRucrazy
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Mag-Hytec AAM 10.5 install & rear locker light

Post by ACRucrazy » Tue Jul 14, 2015 8:36 am

Yesterday I got around to cleanin out the gunk that was sure to be found on the rear locker magnet. While at it I figured I would take that opportunity to install the Mag-Hytec rear diff cover as this rig is not a rock basher and the ugly stocker was not going to be reinstalled.

Needless to say the magnet needed to be cleaned, 141k miles and no idea if its ever been done. 5 quarts of fresh Mobile1 75w90. (The instructions for the Mag-Hytec stated to use 75w140, but my research says otherwise)

While I was sure this would take care of that pesky flashing rear amber light, to my disappointment it did not. The swaybar disconnect worked prior to the cleaning, and still does, yet no lockers according to the service 4wd light that comes on a minute or so after starting and the flashing amber light on the switch. Note, the front does not light up, only flashes briefly on start up.

Next up, replace the most likely shorted rear sensor?

:nopics:

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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by Will » Tue Jul 14, 2015 9:04 am

I don't want to say it but I bet the trouble is in the smartbar. The magnet "looks" to far away to me but that may not be the issue. While mine was under warranty, I had the same thing happen, the sway bar would work and the lockers were intermittent. The dealer replaced the rear sensor which lasted about 2 weeks(coincidence?) The front will not work unless the rear is engaged. Once Morgan came out with the smartbar bypass kit, I got one and installed it. My lockers have never failed or even delayed since. Lock them in 2wd, 4hi, 4lo, it doesn't matter. I am convinced that the vast majority of locker issues are in that "not so smart bar"... good luck. I wish I could help more, but I think you need to hard wire them.
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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by trk4sale » Tue Jul 14, 2015 10:00 am

Hardwire the lockers. Unplug the connector behind the locker switch to get rid of the flashing lights. Learn to live with the SERV4WD light on the dash (or put some tape over it). As is universally noted by people who have hardwired the lockers, it is great to know that they will engage when you want them. Swaybar disconnects always seem to work fine, even with the lockers bypassed.
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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by Throttle 8 » Wed Jul 15, 2015 12:24 pm

Check the wires in the area where they enter the rear diff. I remember a few members had some issues with them cracking where they made a tight turn into the diff.
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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by Mr.Smith » Thu Jul 16, 2015 8:21 pm

You take such great care of your vehicles, well done Sir!

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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by ACRucrazy » Thu Jul 16, 2015 9:15 pm

Thank you very much!

I put about 70 miles in it today and half way home the Serv4wd light went out and the rear locker light quit flashing.
When I got home I tried the lockers out and they worked great right away. I am going to put some more miles on the truck tomorrow with the hopes of it just needing to be drivin a bit after the magnet was cleaned out.

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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by MSCH2112 » Thu Jul 16, 2015 11:13 pm

on my 05' everything was working and i'ld still get the blinking lights. turned out it needed a new magnet...$400 for the magnet alone from dealer.

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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by adeluca73 » Fri Jul 17, 2015 12:52 am

What was that you used to clean off the gear shavings off the magnets? Did you disconnect the battery first?
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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by RustyPW » Fri Jul 17, 2015 10:40 pm

I use Q-tips and tissue to clean the magnet and sensor.
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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by ACRucrazy » Sat Jul 18, 2015 1:05 am

Brake parts cleaner, paper towels. Battery was still hooked up.
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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by 2wagons1driveway » Wed Jul 22, 2015 10:06 am

Damn. I know that's a Hall effect sensor I believe and works on magnetism. Is it possible it's out of adjustement. Things hardly go wrong with sensors them selves of that nature that I've seen it's usually wiring to the sensor... Let us know how you make out!


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Re: Mag-Hytec AAM 10.5 install & rear locker light

Post by Will » Wed Jul 22, 2015 12:50 pm

Mine was acting up and I put on the bypass kit before I cleaned the diff just to see. After the bypass, the lockers worked flawlessly before I cleaned it and it looked just like yours with the crude on the magnet with 95k miles on them.

http://forum.powerwagonregistry.org/vie ... ker+bypass
2010 with 37" hooves, controlled by numerous Thuren parts and Thuren Custom King 2.5's
http://forum.powerwagonregistry.org/vie ... =13&t=2333

I only do what the majority of the 4 voices in my head tell me to. In most cases, I ignore two of them because one doesn't speak English, and I suspect the other is talking to someone else.

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