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Re: AC Pressure Switch ?
Quote:
Originally Posted by 70GMCer
After doing more research, I found that they make an all in one hi-lo Binary Switch.
They have different pressure ratings though.
Some are rated at 28 off & 29 on low side, 400 off & 398 on hi side, & so on.....
Wire it like factory, use factory low pressure switch.
If you add a high pressure switch, it is a seperate switch, on the high side of the a/c...
High ac pressures can be from too much ac charge, low airflow across the condenser, poor cooling or really high outside temps.. or any combination.
Would anyone know which one to get?
I did look up the part number on the original switch to see if it was a hi-lo one. It just lists for low pressure.
So, I'm thinking that there wasn't a hi pressure switch on these truck ac systems..
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Post is old, but..
Jesus christ, the all in one sensor. The hi lo pressure savior switch...
Low side sees 35 psi...
High side sees 250...
If your have this unicorn sensor installed on the low side and sees 250psi, you have more problems than you think..
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Last edited by 87chevy.com; 05-15-2023 at 11:21 PM.
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