The A/C Compressor is not turning on?

Hi,

I have a feeling you got a bad compressor. What are the pressures you are seeing on both sides when you have it engaged? Also, take a look through this link and let me know if anything helps:

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Also, here is a link that explains in general how to replace a compressor. Take a look through this to see if anything was missed.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Let me know.

Joe

When the low side is high and the high side low it means the compressor is not working. Is it a new compressor, if so which brand? The clutch is engaged, correct? then the pressure should differentiate. Also, when you changed the compressor out were there particles from when the old compressor went bad? If so, you should clean the orifice tube.

This guide can help as well, and there is the orifice tube location in the diagrams below:

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Densco compressor and yes clutch engages pressure on low side is about 100 psi and pressure on high side is 150 PSI. I know new parts can be bad. Could it be anything else other than compressor?

Thanks for the help.

Densco compressor and yes clutch engages pressure on low side is about 100 psi and pressure on high side is is 150 psi. I know new parts can be bad. Could it be anything else other than compressor?

Thanks for the help

Also, there were no metal shavings when I took off old compressor.

Did you add oil to the compressor? Also, no matter what, the low side is too high. But based on outside temp, 150 on the high side may not be off. What was the temp outside when you checked the pressures?

Joe

Yes, I added oil to compressor I wanted to add that I was chasing a leak and electrical problem I’ve got those fixed, but I changed evaporator and compressor I put 2 oz oil in both. could oil be built up in condenser?

Also, temperature outside was 85 degrees.

I know the system should have 8 oz. I’m concerned from changing parts there might be too much oil. From residual oil in system. It took me two times to charge the system to find leak then put new parts.

Do you think if I change compressor, dryer and condenser it should work if I do should I add 2 oz of to each?

Yes, let's also remove the orifice tube to change it condition.

Okay, thanks. once I install parts I’ll let you know what happens.

Update: I had a leak fixed but I had jumped the compressor so when I started charging it was leaking out. It burned up the compressor. I confirmed once I checked orifice tube. I took off lines and cleaned got new dryer, condenser, evaporator, compressor. And also got a quality valve for those darn self-sealing cans always had trouble releasing Freon. Got working perfectly.

Thanks for all your help.

Hi,

Thank you for the update. I'm glad to hear it's working for you.

Please feel free to come back anytime in the future. You are always welcome here.

Take care and stay cool.

Joe