So pleased to finally find a 'recent' and knowledgeable post on the 1500's suspensions issues. I bought my RAM 1500 in 2015 outside of Toronto and stupidly massively over-loaded it (1500lb in the bed) and left it outside up near Barrie in the freak -30 ish weather we had winter 2017-18...
Anyway, long story short, i'm certain it iced up the compressor and the system freaked out - not helped by having a truck camper designed for a 2500 in the back at the time. Basically the suspension locked up, and simply said 'immediate air suspension service required' (or something like that) and the ride was stiff an bouncy.
About a week later I shipped the RAM to England where i'm still living and working, it arrived in Southampton docks in 2018 and the suspension has worked fine ever since, no errors, no lockups, ride height is fine, never visibly sags or lowers over time.
The only net result of all the above was ever since getting it to England the compressor makes a loud whooshing noise, or hissing noise similar to a semi or any other air compressor blowing off. It does this every 10 minutes or so about three times total when the truck is started, then maybe a few random times when out and about.... But otherwise works completely fine! Its been like this since 2018, never got any worse (or better)...
There is only one company i'm aware of in England that can service the nitrogen-air suspension system, and I've been quoted £528 ($880 CAD) to get the nitrogen re-pressurized.
Has anyone experienced the same as me, the blowing off noise, but otherwise no other indications of a problem? Should I get the system re-gassed, or just leave it alone?
Thanks.