Automotive Air Conditioning Information Forum

Ok, my last test for today! :)
Ambient temp 99F. Static 100 psi.
Garden hose: High side is dropped to 150F, low side jumps 40-70 as compressor On/Off.
Low side pipe temperature is not changing, barely cold, same as air vent temp!
IMG_2939 Medium.jpeg
Garden hose at the beginning: https://youtube ...

Since I've recharged 670g of freon - I've added 40g more to reach 700g plus/minus 50g as on label. (I've used scale every time)
Took for another ride: same temperature.
In the garage with warmer outside: gages are 50-60/300, condenser fan is constantly running, can not see compressor because it's ...

I didn't evacuate/refill oil. And I assume yellow dye is OEM Nissan Luminous oil.
Hot coolant is always flowing through heater core here and only air flow regulates by diverters.
I've checked heat - works well, heats up and shuts down right after I've put temperature knob to Low.
The suction line is ...

Yes, correct

Tim wrote: Tue Aug 11, 2026 10:57 am Mist the condenser and post pressures & temp.

I did. Pressure dropped little bit but not air temp
https://youtube.com/shorts/uoRBMdIbZhc?feature=share

Pulled the vacuum, recharged 24 oz. Didn't help much.
But at least static pressure is 70 now at 95F.
AC working in same sequence - short start/stop.
Took it for a ride - min air temp from vent - 68F.
Attaching gauges video: https://youtube.com/shorts/0Quf4k-mAGo?feature=share
Running pressure now 50 ...

Pulling vacuum right now, will update in a few.

Tim wrote: Mon Aug 10, 2026 1:54 pm I suggest reclaiming the refrigerant. Pull a vacuum, add back the specific refrigerant, and post your readings. You did not list engine size.

This is what I've been thinking about as first step!!! Will do.

Tim wrote: Mon Aug 10, 2026 1:39 pm Your YouTube is set to private.

Thank you, changed to Public

Hello, need some help in troubleshooting my truck.
I’m not professional HVAC tech, but did my own compressor/radiator/valve replacement, vacuum pull and recharge AC on my old car.

2019 Nissan Frontier, 70k miles. Rebuild title. Was hit at right front side. Own almost a year.
AC is barely blowing ...