AC doesn't blow as cold as it should
I have a 2015 Nissan Altima and the air conditioning is not blowing as cold as it should all the time. Took it to a shop last week and they drained the system and put the refrigerant back in and it worked nice and cold for about 4 days. Now it is back to not so cold again. Could it be the expansion valve? Any help is appreciated
좋은 질문입니까?