Search found 291 matches

by Dougflas
Sun Sep 01, 2019 5:24 pm
Forum: Automotive Air Conditioning Forum
Topic: Running R12 In A R134 System
Replies: 5
Views: 1584

Re: Running R12 In A R134 System

philipswanson wrote:What about the expansion valve? Doesn't that need to be changed to run R12? Some valves specify R134.



R12 and R134 are so close I would not change it
by Dougflas
Sun Sep 01, 2019 3:27 pm
Forum: Automotive Air Conditioning Forum
Topic: Resurrecting 1970 GM AC with POA
Replies: 30
Views: 41779

Re: Resurrecting 1970 GM AC with POA

I should have some of the older o ring fittings as long as Tim does not have them.
by Dougflas
Sat Aug 31, 2019 9:21 am
Forum: Automotive Air Conditioning Forum
Topic: System pressures while filling
Replies: 3
Views: 1070

Re: System pressures while filling

you can place your R134a cans in hot water to get it into the system. You need to get a full corret charge into it before you can evaluate its performance.
by Dougflas
Fri Aug 30, 2019 8:13 am
Forum: Automotive Air Conditioning Forum
Topic: Expert help needed PLS!
Replies: 4
Views: 2066

Re: Expert help needed PLS!

Are you sure that is a resistor in the circuit of the compressor and not a diode?
by Dougflas
Tue Aug 13, 2019 3:13 pm
Forum: Automotive Air Conditioning Forum
Topic: ARA MFG system??
Replies: 9
Views: 1829

Re: ARA MFG system??

yes they used expansion valves with internal equalization.
by Dougflas
Tue Aug 13, 2019 4:20 am
Forum: Automotive Air Conditioning Forum
Topic: ARA MFG system??
Replies: 9
Views: 1829

Re: ARA MFG system??

Last I heard, ARA is out of business.
by Dougflas
Fri Aug 09, 2019 7:12 pm
Forum: Automotive Air Conditioning Forum
Topic: Youtube AC repair procedure - Right or Wrong?
Replies: 4
Views: 1091

Re: Youtube AC repair procedure - Right or Wrong?

Years ago no one evacuated HVAC systems. They blew R22 thru them and called it good to go.
by Dougflas
Fri Aug 02, 2019 5:01 am
Forum: Automotive Air Conditioning Forum
Topic: 92 S10 Truck Blows Air Out Floor Vent Only
Replies: 15
Views: 3082

Re: 92 S10 Truck Blows Air Out Floor Vent Only

If the low side is heavily sweating I do not think you're overcharged.
by Dougflas
Thu Aug 01, 2019 3:31 pm
Forum: Automotive Air Conditioning Forum
Topic: 1992 Cavalier leaking oil from back of compressor.
Replies: 10
Views: 2148

Re: 1992 Cavalier leaking oil from back of compressor.

You're close to 30 years on this guy. Spend it.
by Dougflas
Thu Aug 01, 2019 3:29 pm
Forum: Automotive Air Conditioning Forum
Topic: 1999 saturn sl2 poor idle cooling/temps
Replies: 1
Views: 775

Re: 1999 saturn sl2 poor idle cooling/temps

I think there was an upgrade kit for this using a scroll compressor. My memory is fading and I can not remember. Try Goggle search. I am thinking your older compressors were vane types but can not remember. It is tough getting old.

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