Diagnose AC Issues Like a Pro A Comprehensive Automotive AC Pressure Chart

AC pressure readings for R1234yf ; S · stevj. 60 posts ; S · stevj. 60 posts ; B · Blackhawk · 280 posts ; Rusty289. 688 posts ; B · Blackhawk · 280 posts ... Before the vehicle is started, the static system pressure can be read. ... The PCM gets inputs from the HVAC switch, and from the AC pressure ... 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 ... What pressure should car aircon be. Car AC Refrigerant: Understanding the Basics Automobile air conditioning systems have evolved significantly over the years, ... When the compressor is on, the low side pressure spec is 22 to 36 psi with ambient air temp at 86 - 95 degrees F, temp set to MAX COLD, fan ... No information is available for this page. · Learn why If the pressure readings to the ambient temperatures are different to these, then the system is probably defective. Note: Pressure gauge readings (low and high) ... The low side will get into upper 20's and when car gets cooler inside it will cycle off compressor at 22-24 psi and then come back on when ... ... pressure and low pressure sides of a 2005 GX470 air conditioner? ... Ahhhh, ok, it's a function of the refrigerant, not the vehicle. Makes ... You can check your pressure readings against the infographic above/chart below to narrow down the problem and remedy for your AC Compressor.