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06-30-2008, 07:26 PM
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#1 |
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Registered User
Join Date: Oct 2006
Location: Elgin, IL
Posts: 658
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A/C Identification
I was surprised i couldnt find this through a search...but i was wondering how and through looking at what can i identify whether my A/C on my 87 is R12 or R134. The compressor wiring was a little flawed so i fixed it today, but even with the compressor running, the air remains at the same temperature as when the lever is on vent...any ideas?
BRAD
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2000 GMC Sierra EXT Cab Short 4x4, finally mine... 1966 C10 SWB Fleet, 250 I6, three on the tree.... Previously Owned.... 1987 Chevy R10 "Silverado" (at least the badges were) Short Step 350 700r4.... 1972 Chevy LWB Fleet 350/350 EXTENDED CAB ALL THE WAY! .._..~...-...._...____ .._..-...______|_|__\____ ..-..~.|_(O)__|_|__|_(O)] |
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06-30-2008, 08:49 PM
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#2 |
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Registered User
Join Date: Feb 2008
Location: cocoa florida
Posts: 183
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Re: A/C Identification
brad do a google image search for the fittings for 134A refrigerant
it is distinctive about 1/2 inch round usually the caps are red for the high side and blue for low side r-12 refrigerant ports look like your tire valve Mark |
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06-30-2008, 09:26 PM
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#3 |
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Registered User
Join Date: Oct 2006
Location: Elgin, IL
Posts: 658
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Re: A/C Identification
Ah, thats what i thought. The valve looks like ore of a air hose connector, not the tire valve style. THe problem is mine only has one cap, lol, and its on the bottom line, and its red. I assume they lost the other...thanks
BRAD
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2000 GMC Sierra EXT Cab Short 4x4, finally mine... 1966 C10 SWB Fleet, 250 I6, three on the tree.... Previously Owned.... 1987 Chevy R10 "Silverado" (at least the badges were) Short Step 350 700r4.... 1972 Chevy LWB Fleet 350/350 EXTENDED CAB ALL THE WAY! .._..~...-...._...____ .._..-...______|_|__\____ ..-..~.|_(O)__|_|__|_(O)] |
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06-30-2008, 09:50 PM
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#4 |
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Registered User
Join Date: Jan 2007
Location: Lexington, TN
Posts: 1,427
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Re: A/C Identification
It sounds like some one before you converted it to 134/a and lost the low side fitting. You can pick one up at your local part store.
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The fleet 94 Chevy 4x4 reg cab 2018 Traverse (wifes car) 1977 SWB stepside 1949 Chevy truck |
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06-30-2008, 10:34 PM
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#5 |
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Registered User
Join Date: Oct 2006
Location: Elgin, IL
Posts: 658
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Re: A/C Identification
Well the fitting is their, well by fitting do u mean the cap or the "nozzle", and i was guessing and hoping that someone had converted it...
BRAD
__________________
2000 GMC Sierra EXT Cab Short 4x4, finally mine... 1966 C10 SWB Fleet, 250 I6, three on the tree.... Previously Owned.... 1987 Chevy R10 "Silverado" (at least the badges were) Short Step 350 700r4.... 1972 Chevy LWB Fleet 350/350 EXTENDED CAB ALL THE WAY! .._..~...-...._...____ .._..-...______|_|__\____ ..-..~.|_(O)__|_|__|_(O)] |
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06-30-2008, 10:40 PM
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#6 |
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Registered User
Join Date: Jan 2007
Location: Lexington, TN
Posts: 1,427
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Re: A/C Identification
well I miss read your second post. You do have the 134/a fitting sounds like. But the dust cap is gone. You can buy one of them at the parts store also. By the way are you sure that the comp. clutch is kicked in, if it is not it is posible you are just low of refrigerant. You can by pass the low press. switch to make the comp. run. If you do that and there is no funning sounds comming from it you might put a can of 134/a in it to see what happins.
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The fleet 94 Chevy 4x4 reg cab 2018 Traverse (wifes car) 1977 SWB stepside 1949 Chevy truck Last edited by cjracing15; 06-30-2008 at 10:44 PM. |
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06-30-2008, 11:29 PM
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#7 |
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Registered User
Join Date: Oct 2006
Location: Elgin, IL
Posts: 658
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Re: A/C Identification
There was actually a wiring problem with that one green wire that goes into the cab that i fixed, and now the compressor clutch engages adn there is 12 volts ont eh green wire over by the whatever u call it, condesor maybe? On the passangers side...im goin to ask a guy at work to put in a can of r134 cause hes got the gauges and stuff and we'll see what happens...thanks again
BRAD
__________________
2000 GMC Sierra EXT Cab Short 4x4, finally mine... 1966 C10 SWB Fleet, 250 I6, three on the tree.... Previously Owned.... 1987 Chevy R10 "Silverado" (at least the badges were) Short Step 350 700r4.... 1972 Chevy LWB Fleet 350/350 EXTENDED CAB ALL THE WAY! .._..~...-...._...____ .._..-...______|_|__\____ ..-..~.|_(O)__|_|__|_(O)] |
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