ARB solenoid leaking gear oil - : Jeep Wrangler JK Forum
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post #1 of 4 Old 12-31-2018, 08:23 AM Thread Starter
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ARB solenoid leaking gear oil

I have a ARB HO pump. It is mounted under my passenger seat. When I had the front locker installed, my interior started to smell like gear oil. When I put my hand under the seat to see if the carpet was wet, I pulled back a hand full of gear oil. Any idea what is causing the solenoid to leak?

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post #2 of 4 Old 12-31-2018, 12:18 PM
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First thing I'd check is the end of the breather tube for the diff.
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post #3 of 4 Old 12-31-2018, 12:39 PM
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The compressed air goes to that ring housing with the metal tube on the locker, you probably have a bad seal in that housing for gear oil to go back up the air line. Any type of differential over pressure/over fill situation should just cause fluid to come out of the breather hose rather than up the locker air line, like gt1guy said check for a blockage but still that ring housing (can’t think of proper name) shouldn’t have let gear oil in to go into the pneumatic system unless a blocked breather caused such a pressure buildup it got past the seals, probably o-rings.
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post #4 of 4 Old 01-01-2019, 02:22 PM
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^^^ This right here...

Interesting how several weeks ago I was just pointing out the o-ring/seal weakness in the design of the ARB on another thread where someone was selling their old axle with the ARB in it...

Saprise, saprise...
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