Do you have rear air or just front air?Also do you have a pressure gauge on your charging hose?Does your a/c cooling fan working for the a/c condensor?If your a/c was blowing cold before you charged it putting in 18oz's sure is a lot you could be over charged. Your a/c outlet temp with recirculation on blower speed med 2 should be about 50 degree's or less depending on outside temp and humidity.
July, 3, 2010 AT 9:29 AM
Greatly appreciate your response. Yes I do have rear a/c. Everything works (ed) just fine up until I added that 18 oz. Humidty has been high so I might just be overworried about nothing. However, the kicking in and out is what really concerns me.
I do have a pressure gage and according to the table it was within range (green) before and after it sucked down the 18 oz of freon. It did not seem to have gotten any colder.
July, 4, 2010 AT 12:53 AM
If your compressor is cycling and it's not cooling down then something is wrong. Is your cooling fan working for the a/c?Also what is your low side pressure?I would also check your high side pressure. That's how you diagnose a/c problem's when the compressor is running what the pressure's are.