So while driving with my A/C on I will hear a clicking noise coming from the lower console. I do feel the difference in power, which would tell me that it's the compressor turning on and off. But it doesn't stay on, but it does blow cold. I topped off my r134a this weekend and it still did it even though it did blow a little colder. Again, I feel the power loss/gain and it really make driving frustrating. Suggestions on what else it may be?