Automotive Air Conditioning Information Forum

Is the Condenser plumbed the right way? Installed right side up?

The only way we can do this sort of thing on a message board is with lots of data.

What are the high & low side pressures at idle?

What about at full load? - Doors open,cabin fan on highest speed. Raise engine speed to 1800 RPM ...

Engine swap cars can have little surprises...

You have an LS swap - so some detail would help

Which compressor are you using? Or what was the donor car?

What are you using for a condenser?

Is the PCM controlling the compressor? Or is the compressor wired to the OEM Volvo circuit?

Are there ...

Decided to swallow my pride and take the car into a shop that I thought was reputable. They did get my front alignment corrected.

A/c was indeed low on some freon as I expected but is still doing the something as before. Cold air at idle, give any kind of throttle tip in or gas and the air coming ...

Did you evacuate it after you got the couplers working properly?

Air in the system will cause high pressures & poor cooling.

I thought I did, I can always evacuate the system again.. I bought enough freon to do this a few times over. It makes it any easier I can take it to shop and let it be ...

GM Tech wrote:Mist the condenser with a garden hose- if pressures come down , you have an air flow across the condenser issue- as in blockage or bad fan or fan clutch.

I highly doubt this is an issue since the condenser is the first thing in front but I'll give it try to rule that being a solution

PROGRESS!!!!

Did the following steps as a few members told me. After fidgeting with the low side quick release fitting on the low side fitting I was able to get it to work on my other set of harbor freight cheapo gauges/manifold. Put 12oz of freon in and started the car then put another can in ...

The first step with a system in vacuum should be adding as much of the charge as you can - as liquid with the engine off.

Jumpers sell compressors. Running a compressor with no refrigerant in the system for half an hour is often the end of it.

Sounds like you have service coupler issues - the ...

bohica2xo wrote:Did you pull a vacuum on the system before charging?

Yes

I'd guess from here that you have a valve on your can or gage set not opened-- "sucking down" is tough to decipher-- I'd say a suction pressure of "xxx" may be easier for us to understand-- it won't suck down while charging- it will actually show positive pressure of 50-60 psi until can is empty ...

New here trying to figure out my a/c system. I have a 1993 volvo 245 with a 2004 chevy Lsx v8 swap. I am using a brand new Acdelco compressor that is used on this engine.

New parts:
A/C compressor
Condenser
Dryer
orifice tube
new hoses from the condenser to compressor
7oz of PAG 50 that came ...