I just installed a new ignition switch but I’m still experiencing a power problem.
I’m hearing an intermittent electrical hum, even with the ignition in the off position and the key removed. The sound seems to be coming from some sort of cylinder pump directly in front of the rear drivers side axle. The part doesn’t have any identification on it, but there’s a sticker warning me in 4 languages not to lubricate.
Any ideas on exactly what this pump is called and what it does? It’s mounted next to another unit that looks very similar.
There’s a hydrologic lift system as well as air brakes but I can’t really see how this element relates to either of these systems directly. Pile of manuals in front of me but I’m not figuring out what this is.
This is a 1991 Rockwood Class A Diesel Pusher. Spartan GM chasis.
Ignition switch thread: https://www.irv2.com/forums/f25/rv-w...ue-505035.html