acenase

When I turn my A/C on, I hear this hissing noise. Is this normal? I think I need to re-charge my A/C because it doesn't blow ice cold air.

rykwebb

Ive got something like that same deal. I hear the hissing noise through the glovebox...when I first got my car I recharged the AC myself. About a week later it stopped blowing cold air, so I charged it with one more bottle and it has stayed ice cold for a good 2 months now. It still hisses, it doesnt 'sound' like a bad sound though...lets just hope for me and you that its not the AC Compressor working too hard.

bigmurch

You might have a feral cat living in you glove box.

rykwebb

ill tie that thing to my feral turbos if it stays there any longer

bigmurch

I thought i had a gang of hampsters under the hood (squeak squeak all the time) turned out to be the tensoner pully bearings. Horse power sure beats Hampster power.

Zeal3

iTrader: (1)

i had a hissing noise but it turned out one of my vents were shut.

Carib

The hissing noise is due to air in the system... which is usually caused by a leak. The refridgerant slowly leaks out and gets replaced by air. You'll find the hissing noise gets progressively longer the more you use the AC.

I found this out when I took my car in to get the AC fixed. They refilled the AC with the dyed refridgerant (to find the leak) after a week or so, the hissing noise started... it was short at first and then got longer and longer.

Hope this helps.