AC Issue?

[HerculezJT]

Hey all, new member on this forum, bought my 2015 eco back in FEB, and been having a buzzing/humming noise coming into the cab. Looked under the hood and it appears to come from the AC compressor. You can read more here. https://www.ram1500diesel.com/forum/ram-1500-ecodiesel-forum/#/topics/63722. I am currently waiting on some r1234yf quick connects for mygauges, but was wondering if any of you might have a clue.

Summary:
Only does it when its warm,
Replaced idler pulley
Replaced ac clutch and pulley
Noticed when I move the low side ac line, the noise is more prominent. See video

Got gauges, just waiting one the right quick connects now.

 

[carlhenry]

Welcome check the pressure it may b 2 high

 

[HerculezJT]

Does anyone know the r1234yf operating pressures for these trucks?

 

[HerculezJT]

Ok, this is where I'm at: AC Low and fan full speed at the vent I am reading 32F. Pressure for low is 40psi and high is around 235 psi. This is telling me I'm under charged and I'm possibly freezing over