I have a 2010 G37 Sedan, recently when I push gas hard or if I turn the air all the way up the air gets hotter. I thought it was free on at first Becuase it randomly would get a little hotter. I bought a can, the Gauge in the yellow was the Air full blast on 60. The Gauge in green Was the air 3 Lines up. Does anybody have a guess to what this would be? I just changed my cabin air filter btw

This is the Air all the way up

This is 3 Lines up, but I could feel it colder.

 

Redoing the A/C on my '12 Journey with relatively similar symptoms. Start with the Nissan IPDM to test for compressor and fan functionality, and go from there.


I went ahead and changed my compressor and subsequently noticed a big leak in the condenser / radiator. I wasn't certain of the source of the leak after first inspection, and continued to disassemble / clean the blower assembly etc under passenger footwell, in-order to reach evaporator / expansion valve, which were fine.

You can source the following combination of parts on rockauto / ebay for under $700 if necessary;

- Compressor
- Radiator / Condenser
- Dryer / Accumulator
- A/C Discharge line
- A/C Suction line
- Evaporator
- Expansion Valve
- O-Rings

Good Luck!