Hello guys it’s me again with More problems.
Yay!! Now it my ac. Well the problem is that it blow cold air but then cut off and blow regular air.
When it got really hot I checked the expansion valve and it was frozen. So I figured it needed refrigerant. Well I got a gauge and measured 9 on the low side and the high side was just goin from 90 to 350 non stop. When it hit 350 the engine fan turns on. And cooled the system down.
It was 104 degrees outside down here in Texas.
Today in the morning it was 65. And checked it again now is 40 on the low side and the high just keeps going up and down.
I’m thinking of flushing the system and refill maybe too much oil? I wanted to check with you guys before i start to buy new parts. Thanks
prostar 2015
Cummins isx15
500k miles
Ac problems prostar
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Xenergiserx, Jun 22, 2021.
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