Search found 195 matches

by Dougflas
Thu Feb 22, 2018 6:22 pm
Forum: Automotive Air Conditioning Forum
Topic: R134a price up over 500%
Replies: 11
Views: 1287

Re: R134a price up over 500%

The EPA was planning to abolish r134a. A recent court ruling has decided to stop this from happening. Same thing for r410, R404. Thank you President Trump.
by Dougflas
Thu Feb 22, 2018 6:18 pm
Forum: Automotive Air Conditioning Forum
Topic: 73 stingray with high AC pressure
Replies: 6
Views: 682

Re: 73 stingray with high AC pressure

The above is exactly correct. Spray a water hose on your condenser. If all pressures drop, you have proven what was said. Use R12 and be done with it.
by Dougflas
Mon Feb 12, 2018 1:24 pm
Forum: Automotive Air Conditioning Forum
Topic: 1975 Corvette AC Recharge
Replies: 5
Views: 694

Re: 1975 Corvette AC Recharge

You can access the low side just about anywhere. Be advised, R134a in Corvettes has not been the best choice of refrigerant.
by Dougflas
Thu Jan 04, 2018 9:06 pm
Forum: Automotive Air Conditioning Forum
Topic: Thanks for the add and RV2 questions
Replies: 18
Views: 3409

Re: Thanks for the add and RV2 questions

If the circuit is the same as a 69 Dart, there is a temperature control switch. It is in the circuit right before the low pressure switch.
by Dougflas
Tue Nov 28, 2017 8:03 pm
Forum: Automotive Air Conditioning Forum
Topic: What would cause this new compressor failure
Replies: 4
Views: 1184

Re: What would cause this new compressor failure

Overcharged? Airflow across the condenser? Non condensables Was the compressor new or rebuilt? What was the clutch gap on replacement comprtessor? OIl in system and how much?
by Dougflas
Wed Nov 08, 2017 12:38 pm
Forum: Automotive Air Conditioning Forum
Topic: 1991 Mercedes R12 Troubleshooting
Replies: 7
Views: 1673

Re: 1991 Mercedes R12 Troubleshooting

I did not read where it was suggested to add stop leak. Dye is "colored oil". Check your evaporator carefully for leaks. A good place is to check the drain hose with a sniffer. Also, place a shower cap around the front of the compressor and place the sniffer into the shower cap after sitti...
by Dougflas
Tue Nov 07, 2017 5:36 pm
Forum: Automotive Air Conditioning Forum
Topic: 1991 Mercedes R12 Troubleshooting
Replies: 7
Views: 1673

Re: 1991 Mercedes R12 Troubleshooting

I have some R12 in small cans that also contains dye.
by Dougflas
Wed Oct 25, 2017 3:17 pm
Forum: Automotive Air Conditioning Forum
Topic: Ford E6DH compressor
Replies: 20
Views: 3490

Re: Ford E6DH compressor

one thing stuck out of your plans. You were going to vacuum the system to see if it holds and then open it. Do not open a system while under a vacuum as it will draw moisture into the system. Instead, put some refrigerant or better yet, N2 if you have it then open the system.
by Dougflas
Thu Sep 28, 2017 12:07 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 5399

Re: High Pressure Mystery

After you spray the condenser with a hose and find that the high side drops like a rock, check to see if the fans are turning in the proper rotation. Also see if there is air flow going thru the condenser and radiator. Definitely appears to be a condenser air flow problem. This would not be the firs...

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