Rear locker woes. :(

[jeep-N-montero]

It goes into an actuator in the differential. Most likely culprit would be the air lines themselves, I think.

That is my hope, I will test them for leaks this week.

 

[JamesW]

I had the same issue today and I'm just in the house from fixing it. I put a vice grip on the hose before the diff, and turned on the pump, if it keeps pumping you know it is a leak between the pump and vice grip.

My locker was put in by me, so I have soft lines the whole way from the pump to the diff, and it had got chaffed through where it was rubbing the chassis, so I cut and joined it. Moving the clamp along the pipe helped me pinpoint where the break was.

 

[jeep-N-montero]

I had the same issue today and I'm just in the house from fixing it. I put a vice grip on the hose before the diff, and turned on the pump, if it keeps pumping you know it is a leak between the pump and vice grip.

My locker was put in by me, so I have soft lines the whole way from the pump to the diff, and it had got chaffed through where it was rubbing the chassis, so I cut and joined it. Moving the clamp along the pipe helped me pinpoint where the break was.

A very good tip, sounds better than unhooking the line and spending more time under there than needed in freezing weather.