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On my radio I have an app for lowering the rear to get under trailers and I also have an alt.trailer height switch on the dash under the rsdio.The dealer replaced the air pump and tank which is one sealed unit.
I am new to this forum stuff so if I do anything wrong SORRY. I have a 2021 Ram 3500 dually with air suspension in the rear and having issues. The service air suspension warning kept coming on so the dealer warrantied the air unit and reset everything then the truck did not ride right, very...