My '00 Disco works great, runs great, all is fine. Just finished a total engine rebuild. 231K miles. In the last 2 weeks while driving around town, the ACE light appears on the dash flashing red and a chime tone (somewhat like the "lights on" warning tone) goes off. I pull over. Shut off the truck, read the owners manual, restart the truck, light is off and no more chime. I was not moving but sitting in traffic when it went off the 1st time. It has now gone off 2 more times in the past 2 weeks, once while sitting in traffic, and once while moving about 20-25 mph.

I've pulled the relay so I get the constant on amber ACE light.

Any thoughts as to where to look? My local indy shop does have the system to read the ACE codes and do a diagnostic, but I'd like to see what I can do. Any help would be greatly appreciated.

 

That chime +20/25 mph is usually connected to SLS (as in BCU telling you to slow down). Also if you have an ace leak and there's a pressure drop you will get the Ace light.....I have one right now