Automotive AC Pressure Charts The Key to Troubleshooting and Repairs

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 AC Repair and Discussion topics. Skip to content ... Looking at the ac pressure chart it seems like its proper pressure ... IMMEDIATELY after the car is started, turn on the A/C. It should be cold air almost immediately. This test will rule out any "stuck open" heater ... 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 ... I just did my first automotive AC repair, after the compressor in my ... r134a pressure chart. At the time, it was 82F in my garage, so ... This chart shows the pressure/temp relationship for R-12 and R-134a. Look up the ambient temp and it will show you the pressure you'll see in the system. Note ... Also remember all these pressure charts ... The other day, I spoke with a guy who does auto AC work and he said something very interesting. The online chart shows i need 55 psi on low and 170 on high. I am checking the pressures while engine is warm and idle. Ac on full blast. Ac worked very good ... Note: the AC compressor on my S80 failed and this information is after replacing it. ... When applied to my LR2 live data readings, the psi was ... R134A Pressure-Temperature Chart. -49. -45. 1. -17.2. 51. 10.6. 101. 38.3. -48. -44.4. 2. -16.7. 52. 11.1. 102. 38.9. -47. -43.9. 3. -16.1. 53. 11.7. 103. 39.4.