Search found 232 matches

by Dougflas
Tue May 14, 2019 5:15 pm
Forum: Automotive Air Conditioning Forum
Topic: New Motorcraft compressor, clutch wouldn't turn by hand, squealed after installation
Replies: 16
Views: 199

Re: New Motorcraft compressor, clutch wouldn't turn by hand, squealed after installation

If the evaporator lines are not cold, you have a refrigeration issue. I have run across this once before on an add on system. The drier was installed in reverse. I am not saying this is your problem but it is something to keep in mind. Without pulling up your vehicle, you may have a defective TXV Ha...
by Dougflas
Tue May 14, 2019 2:59 am
Forum: Automotive Air Conditioning Forum
Topic: New Motorcraft compressor, clutch wouldn't turn by hand, squealed after installation
Replies: 16
Views: 199

Re: New Motorcraft compressor, clutch wouldn't turn by hand, squealed after installation

I did not read all of your notes. Let's start over. Run vehicle at 1500 RPM, doors /windows open. Set system on max cool. After 15 minutes. is the input and output tubes of front evaporator cold and about the same temps? If so, the front cooling/refrigeration system is working. Start looking at air ...
by Dougflas
Sat May 04, 2019 4:57 pm
Forum: Automotive Air Conditioning Forum
Topic: V5 control valve
Replies: 8
Views: 117

Re: V5 control valve

That is an excellent price on a new compressor.
by Dougflas
Sat May 04, 2019 3:40 am
Forum: Automotive Air Conditioning Forum
Topic: V5 control valve
Replies: 8
Views: 117

Re: V5 control valve

X2 what GM said. I have used Nylog on the o rings before reass'y. But I have had a couple not work and used a replacement.
by Dougflas
Mon Apr 22, 2019 4:11 pm
Forum: Automotive Air Conditioning Forum
Topic: Add High Pressure Service Port
Replies: 2
Views: 73

Re: Add High Pressure Service Port

Piercing valves leak. A crimped Tee in high side sounds much better.
by Dougflas
Mon Apr 22, 2019 5:01 am
Forum: Automotive Air Conditioning Forum
Topic: 96 caddy AC issue
Replies: 8
Views: 257

Re: 96 caddy AC issue

Put a shower cap around the front of the compressor after verifying there I refrigerant in the system. Let it sit overnight and place a sniffer thru a small hole. se if the sniffer activates. If it doe, could be the shaft seal.
by Dougflas
Wed Apr 10, 2019 8:53 pm
Forum: Automotive Air Conditioning Forum
Topic: Very Little Cooling
Replies: 6
Views: 164

Re: Very Little Cooling

Could be blend door actuator, heater reheat problem, compressor control valve. Now that you have the correct refrigeration level, time to troubleshoot.
by Dougflas
Tue Apr 09, 2019 3:37 am
Forum: Automotive Air Conditioning Forum
Topic: Ford C350 Dual Air - trouble
Replies: 34
Views: 740

Re: Ford C350 Dual Air - trouble

24 on vacuum is not enough depending upon where you are located. what is your elevation? Better recheck your equipment.
by Dougflas
Sun Mar 31, 2019 9:59 pm
Forum: Automotive Air Conditioning Forum
Topic: vir assembly
Replies: 1
Views: 115

Re: vir assembly

question 3... Some of the POA's were adjustable, some were not. question 1 I would keep it R12. there is enough R12 available. Corvettes were a poor candidate for R134a conversions. I still have some small cans of R12 and some with dye only...no sealer. question 2 VIR's for Corvettes usually needed ...
by Dougflas
Wed Mar 27, 2019 9:34 pm
Forum: Automotive Air Conditioning Forum
Topic: 72 Corvette POA Valve
Replies: 11
Views: 174

Re: 72 Corvette POA Valve

Oil can be added with an oil injection tool. If the refrigerant level is correct, you'd connect from high side to low side. Then you'd use high side to push oil in low side. This does take experience to do it this way as you do not want to slug the system.

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