I have an 01 ram 4x4 5.9 .....ac not working ...put one of those $20 cans on with the inline gauge and i see it go from the low end up to about 55 in the yellow and cycle back again as the compressor cycles in 7 sec intervals. I didnt put any freon in as the instructions state not to if youre in the yellow area.

ShouldItry and put the freon in,or do I have bigger probls?

jeff