96 Town and Country with Rear AC. For the past few months ive had a strange hissing noise coming from what sounds like behind the glove box. It sounds like steam traveling in a tube and is usually followed by warmer air from the AC. I replaced a leaky AC line and recharged the system and didnt hear the noise for several weeks now its coming back.
My question is this. Is it something to do with low pressure thats making the R134a make the hissing noise inside the system, which will tell me that i still have a leak. Or is this something else?
Sometimes i hear the same strange noise from the Rear system as well, at the air exchanger back there.