2004 Rav4. A/C was cool but not cold last summer. A few weeks ago I got in my wife's car when it was 95°F outside and warm air came out the vents with A/C on. Wife said it takes time for the air to get cool. About 10 minutes of driving later, the air got a little cool. I added about 10oz of R134A and the air got cold. That lasted about 2 weeks and the air is back to warm. Bought some gauges. The readings were Low: 14psi High: 120psi. Added about 5oz of R123A and readings went to Low: 30psi High: 150psi. After a couple days, the air is warm again when it's 95°F outside but comes out cooler when the outside air is 80°F. I assume there's a leak. Just added some more R134A with UV dye but I don't see any dye lighting up after running it for 10 minutes. Will it take longer than that to get the dye to leak out?