hi people, this is my first post so bear with me if im not in the right section. i got a rear arb diff lock installed about a weak ago. went back into the shop today because as i was driving up a sandy hill i flicked on the compressor and then the locker. it all seemed okay and then the compressor kept cutting in and out. the air line between the compressor was all good and not leaking. just wanted to know if anyonee else has had this problem... cheers