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04-25-2017, 01:45 PM
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#1 |
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Registered User
Join Date: Apr 2015
Location: Boaz,Al
Posts: 209
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A/C for a 1990
Has anyone upgraded to run r13 on their 1990 model.The compressors look the same. I know this is a common upgrade on the 67-72. I couldn't find a lot of info for 88-94.
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Yeah' well sometimes nothin' can be a real cool hand Lucas Jackson |
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04-25-2017, 06:01 PM
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#2 | |
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Registered User
 
Join Date: Jun 2011
Location: Bradenton, Fla.
Posts: 1,100
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Re: A/C for a 1990
Quote:
Go to a GOOD local independent auto parts shop. They will get you what you need. A common request. On my '88 GMC.... I replaced the condenser, compressor , evaporator, accumulator, lines, etc. ( all AC Delco) The high pressure switch is now a 2-wire, so one wire is just a separate ground. My A/C is around 42 degrees.
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'70 GTO Midnight Blue '88 GMC Sierra SLE 392,000 miles-(2018) sold to Classic car shop in Germany. '93 Cadillac STS Black '93 Mercedes SL 500 Teal '86 Yamaha FZ750 - 15,000 RPM '86 Yamaha FJ1200 - Criminally Fast 2016 Ferrari 488 GTB, I drive it - don't own it. '05 GMC Yukon XL , SLT 4wd ( just purchased 2018) |
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04-26-2017, 12:39 PM
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#3 |
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Registered User
Join Date: Apr 2015
Location: Boaz,Al
Posts: 209
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Re: A/C for a 1990
Thanks for the reply mountie. 42 degrees now thats frosty.
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Yeah' well sometimes nothin' can be a real cool hand Lucas Jackson |
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04-26-2017, 01:13 PM
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#4 |
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Registered User
Join Date: Jan 2017
Location: wheaton IL
Posts: 659
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Re: A/C for a 1990
i converted my 1990 to r134 7 years ago when i bought this thing. all i did was put the adapters on the fittings didnt have to change anything (no idea if you were supposed too). never checked the output temp but its keeps me cold on very hot days
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04-26-2017, 03:29 PM
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#5 |
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Registered User
Join Date: Oct 2009
Location: .
Posts: 2,178
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Re: A/C for a 1990
When doing a retrofit, you should change the orifice tube and the accumulator. It's recommended to change the condenser. No need to change other components unless they are damaged or leaking.
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04-26-2017, 05:03 PM
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#6 | |
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Registered User
Join Date: Jun 2011
Location: Bradenton, Fla.
Posts: 1,100
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Re: A/C for a 1990
Quote:
42 degrees is good out of the vent..... It should be around that when fully charged. It took me all Saturday to lift my dashboard high enough to replace my evaporator. ( my heater core was full of leaves, so a great time to clean it).. Anyway, it would take only 20 minutes to raise my dash the next time, now I know where & which screws to undo.
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'70 GTO Midnight Blue '88 GMC Sierra SLE 392,000 miles-(2018) sold to Classic car shop in Germany. '93 Cadillac STS Black '93 Mercedes SL 500 Teal '86 Yamaha FZ750 - 15,000 RPM '86 Yamaha FJ1200 - Criminally Fast 2016 Ferrari 488 GTB, I drive it - don't own it. '05 GMC Yukon XL , SLT 4wd ( just purchased 2018) |
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