Unlock the Secrets of Automotive AC A Comprehensive Pressure Chart for Success

Here is an R12 chart for psi & dF. Shoot for at or slightly above 32dF refrigerant or 30-32 psi low side for the evaporator to deliver 36-40 dF air. You will have to get the system to the above pressure chart, while the car and AC compressor is running. I believe the total capacity for C7 ... Gauge pressure is the first tool in AC troubleshooting. The table below shows 7 Gauge Readouts that you may encounter. This is definitely NOT normal. Here's a handy dandy r134a pressure chart. So going off of that alone, there's something seriously wrong ... How to Take the Pressure Readings ; 70, 35-40, 145-160 ; 75, 35-45, 150-170 ; 80, 40-50, 175-210 ; 85, 45-55, 225-250. A typical Car AC Pressure Chart for a commonly used refrigerant ie, the R134a and also some troubleshooting tips with respect to the AC system pressure. ... readings when the car ... Most people will be inclided to add charge any time the performance of the automotive AC has decreased because the hoses ... Low side is usually around 30 psi. High side is more variable with a range of 150 - 200. Do you have any experience working on ac systems? Anyone know what the correct low/high side air conditioning readings should be for a 190e with R12? ... Auto AC systems are inherently leaky to ... Question: should I put more freon to raise the pressure as per the chart or leave it alone. ... When I worked as an auto mechanic the gauges ...