1st you can't think it has the proper charge without putting on some gauges. Low side should be 35-40 high side 175-200. I suspect your low side is less than 20 and your high side is about 140. Let me know

Answered by losone
7 questions asked

Will check it out and let you know. Thanks. I must also point out though that in the night it seems to operate normal. the compressor trips out as it should and i dont get that whirming sound and there are no bubbles in the sight glass while in the day it is the opposite, this is when the car is in idle though. could anything else other than a low charge cause the bubbling in the sight glass other than a low charge?

Response from bond007
1 question asked

Sometimes air will get in the system and cause bubbles but it is rare. With 134A the loss and or no bubbles don't give you a charge indication. That was a carry over from R-12 freon. The ONLY way to check proper charge is with a set of gauges hooked to the suction and discharge lines.

The reason it operates a little better at night is the temperature of the refrigerant is lower with allows the super heat conduction to be better. You can achieve the same thing by running water on your condenser. That alone tells me you have a low refrigerant charge. Classic AC operation. Good luck

Answered by losone
7 questions asked

Thanks. I'll check it out and let you know.

Response from bond007
1 question asked