Greetings;
I have a 1993 T&C with dual air. I'm charging the A/C and would like to know the approximate pressures for full charge. It uses R-134a (factory). Right now at 75 degrees F. ambient I am getting about 25psi low and 175 psi high at idle. Does this look OK?
Also, I am having an annoying intermittent problem with the A/C compressor. Sometimes I will set activate the A/C button on the dash but the A/C compressor will not come on for about 2 minutes. Usually the radiator fan does not come on right away either. I checked as many sensors as possible but no improvement.
I am pretty sure it is not low R-134a because the pressures seem just about right and when the A/C turns on it gets delightfully cold. Must be something electrical. I don't want to spend the $$$ yet to get a code scan. Any suggestions?
Finally - I don't know what type of oil is in the system. Could be PAG and could be ester oil. System proabaly needs some oil. All I can find is ester oil. Is this compatible with PAG, in case PAG was already in the system?
Gary Jablonski Atlanta (Hot and humid)