Hello All, I have a 1997 Millenia and the A/C has begun to not cool well which in Miami is a real drag. The pressures at idle with a 90 degree ambient temp. is about 45 psi on the low side and 220 on the high side. One A/C shop recommended evacuating the system overnight then add the proper amount of oil and R134a. They say that Mazda recommends that this be done every 4 years. Evaporator temp never gets below 60 degrees when it is hot outside, at night it is much better.
Anybody have any ideas? HELP!!!
Many Thank's
Richard

 

Don't we have any A/C guys out there? I repair avionics perhaps I can help someone with their A/V system.
Thank's