not sure if compressor is bad or not, but looks like bags are leaking. the truck typically is lowered in back in drive way, apparently the air leaks out of bags when sitting, then when I start engine, the compressor usually kicks on, the airs bags & back end lifts back up to normal.
Yesterday the compressor did not kick on when I started truck & the rear end stayed lowered down when I drove it. Really bounce & dangerous. I drove it earlier today & much later, when stopped at red light, the compressor kicked on & raised the rear end to normal again. not sure what needs to be replaced. sounds like bags are leaking.
i found there is a air hose connector next to master cylinder, was cracked & appears to be the cause of leak. $30 at dealer. I took relay in to dealer & they cannot check relay off vehicle, requiring diag $100+ charge, but looks to be working anyway.
truck was normal level this morning in driveway!
thx 4 making me investigate problem & saving me $$$.