AC not cooling well in summer heat. Vent temp not as cold as it used to be.
-I have replaced cabin air filter
-Both cooling fans are coming on
-I see the compressor spinning
So I rented pressure gauges, not sure what the range is supposed to be. Attached pic for idle and 2000rpm reading. Does anybody know if these numbers are low?
At idle: 30psi / 160psi
At 2k rpm: 5psi / 180psi

🙏 Thanks !

Idle pressures

Pressures at 2k rpm

 

Try Section 21 of the Service Manual.

I looked, but I could not find the exact info that you need because I don't now what I'm looking for. Maybe you can find it.

 

https://www.rechargeac.com/how-to/ac...ressure-chart/

 

Looks like you might be low on some r134a. Pressures should be around 35 psi for low and 175 for high the readings will vary with outside temps. What were your vent temps and ambient temp inside the car also what was outside temp?

 

Thanks all for the replies. Outside temps were around 100F. I tried refilling with r134a and it got a little better. Was afraid I screwed up and got a bunch of air in the system, so ended up taking it to the shop and getting it fixed. They evacuated, checked for leaks and refilled the system. It’s cooling really well now.

 

Nice to hear!

On the refill with r134a it had the possibility of introducing air into the system via the lines if the they were not purged them prior to charging to system. Or air was already introduced via the seal and leak.