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#1 (permalink) |
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Registered User
Join Date: Jul 2004
Posts: 63
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A/C Techs Help Needed
First a little history the truck is a 86 toyota 22RE. I replaced the a/c pump 6 months ago along with the reciever drier, the old pump was bad plus it was low on freon. Had a shop recover and store the remaining freon and then put it back after I installed everything. It was still low so I put a can in and it was right in spec and really cold 40 degrees. Now 6 months later it only gets to 80 when its 110 outside. I checked the pressure and when I hook up the gauges both are at 150psi then I turn the compresser on and the low side is 40psi and the high side is 250psi.Its not low on freon so I dont know what the problem is? Also when the shop put the freon in the truck they didnt pull vacuum like they should of, but it was a family friend so you all know how that goes. I'm a a/c tech so I know a little about this but with my lack of a recovery machine leaves me stuck. My theory is there is air or moisture in the system. I plan to recover , vacuum and recharge with freeze 12 but I would like to get a second opinion? Thanks
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#2 (permalink) |
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Registered User
Join Date: Feb 2007
Location: Gateway City
Posts: 450
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Uh, the first problem is you re-used refrigerant that is usually a no-no. Yeah refrigerant doesent wear out, but it can be contaminated. personally I'd start over w/ some new refrigerant and make damn sure you pull a good vacuum on it, I'd try this first and see whacha ya got.
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#3 (permalink) |
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Registered User
Join Date: Jul 2004
Posts: 63
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I know the refrigerant wasnt contaminated (original 1986)and it went through a recycler, but with the guy not pulling a vacuum its probaly contaminated now. R-12 stoped being produced around 1995 so all refrigerant now is mostly used and recycled.
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#4 (permalink) |
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Registered User
Join Date: Feb 2007
Location: near philadelphia
Posts: 164
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so are you saying there was no vacuum put on the system after you installed the goodies? if so, you need to just start over.
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#5 (permalink) |
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Registered User
Join Date: Dec 2004
Location: Taylorshole,Mississippi
Posts: 688
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What did you do with that antique expansion valve?
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#6 (permalink) |
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Registered User
Join Date: Jul 2004
Posts: 63
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Expansion valve was never replaced
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#7 (permalink) |
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Registered User
Join Date: Dec 2004
Location: Taylorshole,Mississippi
Posts: 688
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And the fan clutch?
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