My air conditioner on my 2001 rx300 Lexus IS blowing hot air. Compressor works , fan works, and last summer it did the same thing. I asked service person to put freon in and was told that it was

Asked by Jul 07, 2015 at 01:34 AM about the 2001 Lexus RX 300 AWD

Question type: Maintenance & Repair

Full enough but he put a very small amount
in and the air conditioner worked great for
about a year. It was checked and I was told
it was full but he added a very small amount
again. Worked great for about 3 days and
back to warm air. Going on trip south (temp
in the 90's. Really need ac working

3 Answers

112,465

It sounds as if you have a leak in the system. The leak will need to be repaired and recharged. It may be easy to find and then it maybe hard to find, it all depends on where the leak is (High or low side). The best way is to put in a dye into the system determine the location but may take a day or so for the dye to work its way to the area where its leaking. If you need the car and cant wait go to a local auto store and purchase a can of refrigerate the one with the gauge indicating that the system is full. But know that the refrig will leak out again until the leak is found.

20,330

Sounds like you have a leak in the system. Hear is something you can try no promises but it worked for me add a can of R134a refrigerant leak sealer. Add no more then one can if it does not work do not add any more hoping it will seal it will clogg the system. Have system fixed if does not work

290

you have a leak

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