Okay workin on my m8s AC. Compressor and Fan is turning on. Freon seems to be moving through the lines (looking threw the little peep hole thing on the passenger side engine bay). But it seems like there are bubbles in the freon? I heard this might be from low freon?
Thanks, let me know.

 

I am pretty sure the refridgerant fluctuates between a liquid and a gas, depending on what part of the a/c system it it traveling through. However it could be normal air, in which that is a problem.