AC stopped working today - TriStateTuners.com :: Home of Tristate Auto Enthusiast

O2SpecV · 07-14-2010, 11:29 PM

it was working yesterday blowing fine cold air and when i turned it on today it blew warm air and all i could hear was the compresser hissing and thats it. any ideas?

Foolinaround · 07-15-2010, 10:43 AM

put some dye in the system,sounds like a seal is bad in the compressor. is it clicking or hard pressed when turned on?

jpalamar · 07-15-2010, 11:04 AM

Is the AC clutch working? Does your system have the correct pressure? Could just need a recharge?

Foolinaround · 07-15-2010, 11:25 AM

usually if its got cold air and then turns hot in the snap of a finger its not just a recharge. if it slowly turns warm then that is a possibility.

Still gonna recommend a slight shot of r134a,dye,and a UV light.

russiankid · 07-15-2010, 12:28 PM

A/C systems are one of those things where you have to know pressure inside to be able to diagnose the issue. Get some gauges and see what the low side is, and then check what the high side is with the A/C on. It could be just the clutch worn out and slipping, or it could be a worn out compressor.

Honduh · 07-16-2010, 03:49 PM

When you turn the A/C switch on does the compressor engage or does it just keep spinning free? If its turning on then you still have pressure in the system, but could still be low enough to not chill. But usually when you have low freon levels it will blow cold and then go away because it will free to evap.

Also, is the condenser fan working?

O2SpecV · 07-17-2010, 12:40 PM

from what i can tell when i turn the dial the compressor will engage and start making a hissing noise and when the ac did work the hissing noise would fade away and blow cold air now the hissing noise does not go away and it blows warm air condensor fan does work

got_tint? · 07-17-2010, 01:02 PM

you may have had a leak where the lines meet the firewall.

04specsonnn · 07-17-2010, 02:05 PM

^^yeah i have a spec v (not sure if thats what u have the leakl in ) but thats where mine started to leak from right at the fire wall connection

O2SpecV · 07-17-2010, 09:27 PM

cool i am going to look at it tomorrow and then ill prob just take it down to pep boys cause i got a 3 hour trip coming up next thursday

kennwrx · 07-17-2010, 09:41 PM

the first day of the 90 degree days is when mine went lol

07-14-2010, 11:29 PM	#1
O2SpecV Tri-State Addict Join Date: Sep 2008 Location: Exton Member #8680 My Ride: 2007 Mazdaspeed 3 iTrader: (0)	AC stopped working today it was working yesterday blowing fine cold air and when i turned it on today it blew warm air and all i could hear was the compresser hissing and thats it. any ideas?

07-15-2010, 10:43 AM	#2
Foolinaround TST Ruined My Life! Join Date: Oct 2008 Location: McGuire AFB Member #9448 My Ride: 2016 GTI SE w/PP/Boeing C-17 Globemaster III iTrader: (2)	put some dye in the system,sounds like a seal is bad in the compressor. is it clicking or hard pressed when turned on? __________________ -John C-17 Loadmaster DenOfDebauchery

07-15-2010, 11:25 AM	#4
Foolinaround TST Ruined My Life! Join Date: Oct 2008 Location: McGuire AFB Member #9448 My Ride: 2016 GTI SE w/PP/Boeing C-17 Globemaster III iTrader: (2)	usually if its got cold air and then turns hot in the snap of a finger its not just a recharge. if it slowly turns warm then that is a possibility. Still gonna recommend a slight shot of r134a,dye,and a UV light. __________________ -John C-17 Loadmaster DenOfDebauchery

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07-15-2010, 11:04 AM	#3
jpalamar TST Ruined My Life! Join Date: May 2009 Location: Collegeville, PA Member #13773 My Ride: 03 Corvette Z06 iTrader: (3)	Is the AC clutch working? Does your system have the correct pressure? Could just need a recharge?

07-15-2010, 12:28 PM	#5
russiankid Tri-State Post Whore Join Date: May 2008 Location: Lincoln University PA Member #7769 My Ride: 2012 Scion tC iTrader: (0)	A/C systems are one of those things where you have to know pressure inside to be able to diagnose the issue. Get some gauges and see what the low side is, and then check what the high side is with the A/C on. It could be just the clutch worn out and slipping, or it could be a worn out compressor.

07-16-2010, 03:49 PM	#6
Honduh Tri-State Post Whore Join Date: May 2006 Member #1977 iTrader: (0)	When you turn the A/C switch on does the compressor engage or does it just keep spinning free? If its turning on then you still have pressure in the system, but could still be low enough to not chill. But usually when you have low freon levels it will blow cold and then go away because it will free to evap. Also, is the condenser fan working?

07-17-2010, 12:40 PM	#7
O2SpecV Tri-State Addict Join Date: Sep 2008 Location: Exton Member #8680 My Ride: 2007 Mazdaspeed 3 iTrader: (0)	from what i can tell when i turn the dial the compressor will engage and start making a hissing noise and when the ac did work the hissing noise would fade away and blow cold air now the hissing noise does not go away and it blows warm air condensor fan does work

07-17-2010, 01:02 PM	#8
got_tint? Former Vendor Join Date: Jun 2010 Member #16652 My Ride: 00 Audi S4 Stg 3 iTrader: (0)	you may have had a leak where the lines meet the firewall.

07-17-2010, 09:27 PM	#10
O2SpecV Tri-State Addict Join Date: Sep 2008 Location: Exton Member #8680 My Ride: 2007 Mazdaspeed 3 iTrader: (0)	cool i am going to look at it tomorrow and then ill prob just take it down to pep boys cause i got a 3 hour trip coming up next thursday

07-17-2010, 09:41 PM	#11
kennwrx Tri-State Aficionado Join Date: Jun 2007 Member #5247 iTrader: (0)	the first day of the 90 degree days is when mine went lol