Could someone check these AC readings?

[HoosierJeeper]

For the WK....getting a sucking sound and it has lost some refrigerant before (had it recharged at a shop a few months ago). They put a UV dye in it and I can't find leaks anywhere with the black light.

At 70 degrees F, 60% humidity, low pressure side was at 20, high pressure at 250. Is that normal?

 

[LibertyTC]

Best to refer to the factory service manual specs, I dont have one for the Grand/ WK.
20 is low I did find this for 134A..
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[HoosierJeeper]

It seems like the low side is low and high side is high. High it was around 220-250. Settled at 250 for the most part.

 

[Cheyne]

What was the rpm when taking the readings? Engine should be warm and at 1K.

 

[LibertyTC]

I believe the high should settle back, once you add refrigerant to the low side port, but still sounds like the leak needs to be found.
And yes running @ 1000 rpm is correct!!

 

[HoosierJeeper]

Oh I was just at idle

 

[Conundrum2006]

The high side seems correct the low for me needs to be 35-45, in the 40 range the ac starts to feels good front and back. That is with dual Ac and in the July heat. The FSM had 50 psi low side as being right for the 250 psi high.
My harbor freight mana food and gauges does not read the low side correctly so I got a even cheaper set to verify the low readings.




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