I discussed this topic with a Auto AC expert. He suspected the temp sensor
on the rt side of the dash is super heating if left exposed and may overload the system on the start up pressurization. Resulting in freezing the return line reducing overall initial cooling. I experimented with covering the glass aperture on the right dash with a folded map. The car sat out in 100+ temp for 6-7 hrs. I can report my cooling time has been reduced by 50%. I mean time to cold air from the vent. I can say the AC in my 2010 is now holding its own in this bruising heat wave.
on the rt side of the dash is super heating if left exposed and may overload the system on the start up pressurization. Resulting in freezing the return line reducing overall initial cooling. I experimented with covering the glass aperture on the right dash with a folded map. The car sat out in 100+ temp for 6-7 hrs. I can report my cooling time has been reduced by 50%. I mean time to cold air from the vent. I can say the AC in my 2010 is now holding its own in this bruising heat wave.
