rubicon rear locker help - JeepForum.com

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post #1 of 17 Old 04-06-2013, 07:09 PM Thread Starter
jeeprubi2005
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rubicon rear locker help

ok here's the facts

front locker engages light doesn't flash

rear locker engages light flashes wont stop flashing

both pumps working all air lines look good and electrical connections tight and corrosion free

any ideas what would cause the locker to work but the light to flash???



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post #2 of 17 Old 04-06-2013, 07:16 PM
Necko2529
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It locks/unlocks without much effort?

Rokmen TT, Rokmen control arms, Novak NV241 cable shifter, JKS 1.25" BL + 1" MML.

Anybody can take advice if it doesn't interfere with their plan.

RIP "Prescott 19" Prescott Fire Department
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post #3 of 17 Old 04-06-2013, 07:19 PM
pete1986
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I have the same issue with my 04, its gotta be a sensor error somewhere in the system. As long as im locked I don't care if the lights blinking or not, but it would be nice to have a CLEAR indication whether the air locker has locked, or if it is in the process of locking.
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post #4 of 17 Old 04-06-2013, 07:20 PM Thread Starter
jeeprubi2005
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Yes locks and unlocks fine had it up on jack stands to check and in the yard it skids the tires while turning
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post #5 of 17 Old 04-06-2013, 09:46 PM
MJBinNM
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Does the pump continue to run while it's flashing? If it does, you probably have a small leak somewhere. Mine had the little spring clamp fail inside the diff. I replaced it with a small zip-tie 4 years ago and haven't had any problems since.

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post #6 of 17 Old 04-07-2013, 04:45 AM
brianmlove
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Same with me on the spring clip.i put a ziptie on both sides of the hose inside the diff
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post #7 of 17 Old 04-07-2013, 06:45 AM
Piratejonh
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Did you remove the gears by any chance. They can be installed with the end of the sensor on the wrong side of the plate and cause the light to flash a malfunction.

Jeep took another piece of my finger today...
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post #8 of 17 Old 04-07-2013, 10:38 AM Thread Starter
jeeprubi2005
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No its completely stock
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post #9 of 17 Old 04-07-2013, 04:48 PM Thread Starter
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post #10 of 17 Old 04-07-2013, 04:54 PM
brianmlove
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Airline inside the diff. Also try to plug off the air hope by the diff to see if the compressor cuts
Off
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post #11 of 17 Old 04-07-2013, 05:07 PM Thread Starter
jeeprubi2005
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The compressor doesn't run all the time
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post #12 of 17 Old 04-08-2013, 09:55 AM Thread Starter
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Bump anyone
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post #13 of 17 Old 04-08-2013, 10:59 AM
Timido
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There is a plunger sensor that tells the jeep when the locker is locked. My guess is the sensor is bad or the wiring is damaged. If you try to replace that switch you have to remove the differential. There is alot more to it than replacing the switch
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post #14 of 17 Old 04-08-2013, 11:47 AM
Rubi4MyMrs
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I think you can test that switch by crossing the 2 wires & see if the light stops flashing. If not, it is probably a broken wire or bad connection between the switch & the cluster or ground. Make sure the black wire has a good ground.
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post #15 of 17 Old 04-08-2013, 12:00 PM
ops5
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Have you changed the diff fluid recently? If you tighten the fill plug too far in, it can stop the locker ring from moving and cause the flashing lights

Edit- after re-reading your post, you say the rear are in fact working/engaging. How do you know that?
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