I just got one of the recharging kits and followed direction and my card showed pressure of 150. Is there something wrong with my a/c or somone had overcharged it? It shows 150 when car is off also.

 

Mine didn't work and it was overcharged. A guy bled it out and then put that recharge stuff in it to bring it back up to normal worked great ever since.

 

The kit thing shows that 150psi is in the RED ZONE... but when they fill it at a shop its over 150psi...

I dont get it... I have 135psi right now and its fine.

 

Question is what is normal presure on low side? It seems that low side sould be at 30 psi?

 

Refrigerant Capacity 1.65 lbs.
Refrigerant Type R-134a
Total Refrigerant Oil Amount 4.8 oz.
Refrigerant Oil Type ND Oil 8 [1]
[1] Or Equivalent

Pressures I would have to check on ,but 150 i think it way to much if that is for the low side.

 

When I had my SC, if we overcharged the system, the Compressor would turn on, shut off, turn on shut off. Once we drained it a little to the normal pressure, it ran as it should.

 

It does not seems that my compressor is not turning on. It spins by hand but I don't see anything spin. I belive the part inside should bee spining when a/c is on

 

How I can test my a/c system. I tested voltage at relay and there is zero voltage sometimes goes up to 0.4v. How I can test my a/c system to see why the compressor does not come on at all.

 

I have an AC compressor next to me that does the same thing. It spins by hand, but when I turn on the AC, the light blinks and makes no cold air.

 

low side should be around 35psi right after the compressor cycles...high side should be in the 150-175 psi range (after a compressor cycle) depending on the temp and humidity.....

 

^^^ Yeah thats sounds more of the normal range. Your compressor could have some resistance in it or metal particles causing it to stop. You can also check your clutch on the compressor if you have the right tools. If the clutch is cracked it won't engauge. If you have to much as mentioned before it will surge on and off. If the amount is just right it should stay on. If there is dye in the can you can check the a/c lines with a uv light/black light and you should find the leak.