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03-26-2019
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#11 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,157
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Re: AC issue after 134 conversion/repair
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__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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03-27-2019
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#12 |
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Join Date: Feb 2016
Location: Carterville Illinois
Posts: 854
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Re: AC issue after 134 conversion/repair
A few years ago, I bought a can of 134 refrigerant. I was curious to see if my A/C even worked. I added the whole can, but no cold air. I kept getting the low freon code, so I pulled the fuse and it worked after that.....Blew absolutely ICE COLD after. I never got the code again, and it lasted the summer. When I pulled the car out in the spring, it had all leaked out over the winter. So i have a slow leak somewhere. But I don't even bother running the A/C anymore. If it's hot, I just roll down the windows or take the top off. And I always carry a bottle of water in the summer.
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03-27-2019
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#13 |
 Join Date: Apr 2016
Location: Birmingham, Alabama
Posts: 60
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Re: AC issue after 134 conversion/repair
Low pressure switches are adjustable. A problem for R12 cars is that now, when you buy a replacement LPS, it is set for R134 and cuts off too soon. That was the problem I encountered but it went away after I got the LPS dialed in for the R12 setting in the FSM.
I wasn't impressed with the accuracy of the LPS for R134 either after I started dialing it in. If I remember correctly, it was about 2 PSI too high. |
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03-27-2019
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#14 | |
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Join Date: Apr 2016
Location: Birmingham, Alabama
Posts: 60
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Re: AC issue after 134 conversion/repair
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You don't live in the South. Come down sometime in August and let us know what you think. |
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03-27-2019
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#15 | |
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Join Date: Feb 2016
Location: Carterville Illinois
Posts: 854
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Re: AC issue after 134 conversion/repair
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I live in southern Illinois and it starts getting hot the second week of May....and by hot I mean I'm glad I don't have black leather, that would suck in the summer. I don't care where one lives, hot is hot. Come up here in August and I guarantee you won't able to tell here from there. |
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03-27-2019
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#16 |
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Join Date: Oct 2018
Location: Houston Texas
Posts: 38
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Re: AC issue after 134 conversion/repair
I would love to have Illinois average temperature of 82F in August with record highs of 95 vs Houstons average of 94f with record highs of 105 and asphault temps of 120+ . Im quite sure we would agree its different!
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03-30-2019
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#17 |
 Join Date: Jun 2018
Location: Owasso, OK
Posts: 6
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Re: AC issue after 134 conversion/repair
If you install the later R134A compressor you will need to retain the old compressor hose adapter.
Coldhose.com can replace the old hoses and install new hose ends to incorporate R134A low and high service fittings. This company provides excellent service and is very reasonable. While you are at it,, install a new orifice tube, 4 Seasons P/n 38638 and cycle pressure switch, p/n 36674. This would be a good time to remove the radiator package and clean the debris from the cooling fins. The system will require 2 lbs. of freon. If you live in the Tulsa area I can give you a hand. |
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04-05-2019
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#18 |
Join Date: Mar 2015
Location: New Zealand
Posts: 386
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Re: AC issue after 134 conversion/repair
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04-05-2019
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#19 | |
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Join Date: Mar 2015
Location: New Zealand
Posts: 386
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Re: AC issue after 134 conversion/repair
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Sent from my SM-G960F using ZR-1 Net Registry mobile app |
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04-06-2019
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#20 |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: AC issue after 134 conversion/repair
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