Search found 5 matches

by Esox
Sun Sep 25, 2022 3:15 pm
Forum: Automotive Air Conditioning Forum
Topic: New Parts But Can't Pull a Good Vacuum
Replies: 11
Views: 272

Re: New Parts But Can't Pull a Good Vacuum

Will do. I'll report back periodically with how its holding up and pressure values.
by Esox
Sun Sep 25, 2022 2:09 pm
Forum: Automotive Air Conditioning Forum
Topic: New Parts But Can't Pull a Good Vacuum
Replies: 11
Views: 272

Re: New Parts But Can't Pull a Good Vacuum

Yes, the design of where the evaporator and accumulator meet is not great. I proved that!

Good point on the 12 oz. cans. I'll measure each one next time I do a job like this. My final numbers were 38 low and 190 high. It was fairly cool outside air temperature.
by Esox
Fri Sep 23, 2022 4:09 pm
Forum: Automotive Air Conditioning Forum
Topic: New Parts But Can't Pull a Good Vacuum
Replies: 11
Views: 272

Re: New Parts But Can't Pull a Good Vacuum

UPDATE: I put just a tiny bit over 2oz of PAG46 oil with dye into the replacement accumulator, installed it, and pulled a vacuum for 2 hours. I then closed the gauges and it held the vacuum reading for one hour without moving at all. I then proceeded to start charging the R134a. The first can went V...
by Esox
Thu Sep 22, 2022 6:38 pm
Forum: Automotive Air Conditioning Forum
Topic: New Parts But Can't Pull a Good Vacuum
Replies: 11
Views: 272

Re: New Parts But Can't Pull a Good Vacuum

1. Is your vacuum pump powered by an electric motor? Yes. 2. Connect up your gauge set so that it is the only thing connected to the vac pump. ie don't connect the red and blue hoses to the car, and see what kind of a vacuum you can get. It sounds like there are leaks No leaks. 3. report back Since ...
by Esox
Thu Sep 22, 2022 2:39 pm
Forum: Automotive Air Conditioning Forum
Topic: New Parts But Can't Pull a Good Vacuum
Replies: 11
Views: 272

New Parts But Can't Pull a Good Vacuum

I have a 2000 Chevy Silverado 5.3L with single A/C. I have had a slow leak for a couple years. It appeared to be the condenser based on a UV light inspection and the dye in the oil. I bought a set of gauges and a vacuum pump from Harbor Freight. I then purchased a new condenser, accumulator, and bot...