Unlocking Automotive AC Secrets Pressure Charts for Ultimate Performance

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. Pressures relate to ambient temperature. Did you get the pressure from the temp/pressure chart? My FSM normal range is 21-35 low side, 199 ... 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? Download the free Pressure Chart ... What Pressure Should my Car AC Be - How To Check Automotive R134a Air Conditioner - Recharge Tips. If anyone expects their ac to cool down to 35F, then low side pressures should be around 30 psi. If you were to use the wrong chart, this would ... Remove component clear restriction or renew component. AUTOMOTIVE AIR CONDITIONING ... pressure, high suction pressure and evaporator flooding ... ... pressure drops and then you can compare readings to the R134a chart. ... An average automotive AC system can lose about 0.25 to 0.5 ounces ... ... vehicle said max oil charge is 9oz. ... Squirt in a can on a cool motor (that's not running- duh) and reference a 134 temp/pressure chart. Before the vehicle is started, the static system pressure should be read. Pressure values should be very nearly equal on both LP and HP gauges. The actual ... Automotive Air Conditioning Diagnosis Chart ; Low Side, High Side, Duct Temp ; Low, Low, Warm ; High, High, Warm ; High, High, Some Cool ; Normal ...