ACE Problems and Options
 

have a 99D2 with a 2" OME lift, steel wheels, 265/75R16 TAKO's. The truck has 110K Miles. I've never had an issue with the ACE system, and every other year would replace the fluid as routine maint. Recently, I've had the yellow ACE light come on. But no issues with performance. I had read online that replacing the fluid might help. I did that recently, by sucking it out with a baster, and filling it up 'til the fluid looked clean. Unfortunately, didn't help my yellow light. Recently, I hooked up a trailer and only got about a 1/4 mile down the road, when my truck started swaying like a ship on the ocean! I had to stop immediately. I got an yellow light again, but no red.

Not sure what to do. I haven't yet taken it to the dealer to see if they can diagnose or fix the problem. I'm hesitant to put any big money in the truck as it's seen it's entire life in upstate Ny and is getting pretty rusty. Many years ago, I did purchase a conventional sway bar system from a guy that converting his truck to off road duty. I've thought about using that, but as I said, the bottom is pretty rusted.

Thoughts?

There is a sensor that goes bad, not sure where it is located though.

Thanks! I've read that I can disable the pump and use the system as if had no sway bars. Anyone tried this? How did the disco ride?

Why would you disable a $1700 option from the factory instead of getting the codes read and fixing the problem. Is the fluid swirling in the reservor, is the pump any noiser then normal and what fluid have you been using on your flushes?
By passing the pump will just give you a sloppy top heavy ride when the system is not working.
If you want some help with this, send me your number and I'll walk you thru a few things to try.

Yes you can buy a new belt and by-pass the ACE system, you will need to add the sway bars though to keep the ride the same.
Because ACE was a option there are 2 different fan belts.
Belt Polyvee - Find Belts, Hoses & Other Land Rover Parts at Roverparts.com
Different lengths.
Belt Polyvee - Find Belts, Hoses & Other Land Rover Parts at Roverparts.com