I would dump the compressor. I am using 2 380 Viair's on my S-10 and I can hop the front end off the ground. Check the valve opening for road debris, I get that once in a while
OK, I'm getting rid of the air zenith and getting two viair 480's. sick of the air zenith breaking down all the time and i only drive it once or twice a month. the air zenith is only a 9 months old and it's broke 3 times now.
I don't know if you've bought your 480's yet but I got my chrome ones on ebay from a place called VTKustoms for 360.00 with free shipping. I have them on a 12 gallon tank and I love them.
yeah that sux bout your AZ. The f150 i just finished picks up off the ground at 40 and at 60 you can drive around town just fine, 80 if you wanna turn lock to lock. Its an 02 screw 285/35/22s but atleast now you have dual viair