Disclaimer - I know a bit, but I am NOT an AC expert. I have to ask: did you read those pressures WHILE the low pressure side refrigerant valve was open to the refrigerant container? Because if so, I never pay any attention to readings unless the low pressure line is closed to the refrigerant source...

bohica2xo wrote:Fan clutches get tired. they still spin, just not very hard.

When I read the original post this morning, I also was thinking fan clutch. Just last month I replaced the fan clutch in my 1988 Mazda truck - again. These seem to last about 6 years here in Phoenix.

I'd get brand new compressor if available. Try board sponsor, ackits.com

On my 1988 Mazda truck, and my 1998 and 2004 Nissan Frontiers - all which have expansion valve systems - the de-icer switch on the evaporator case (which has a sensor in the evaporator fins) makes their compressors cycle.

Back then, didn't most add on units use an expansion valve?

I replaced compressor only on our 2005 Yukon as the compressor did not seize.

I replaced compressor, condenser, drier and flushed the lines when the compressor in my 2004 Frontier seized. So depends on the individual situation.

purged gauge lines and the orange smelling flush came out of gauges. Sounds like you didn't remove all the flush solvent. Is there a way to get moisture out of condenser and drier and compressor? Moisture should get boiled out of condenser and compressor by sufficient vacuum/duration. But drier pel...

As to YouTube help: some stuff there is OK, some is not. One has to evaluate based on credibility, and what others post. This is a 100% true recent example: Scotty Kilmer had some video of cleaning a catalytic converter with lacquer thinner. My brother in law thought this was a good idea, and Mrs. C...

Disclaimer: I'm NOT a certified AC tech, and do not consider myself an expert. First, here is the link to the discussed video. https://www.youtube.com/watch?v=RIiKPm3f75k My own opinion is that proper evacuation removes air from the system (about 78% nitrogen and 21% oxygen) which takes up volume in...

rpctmc154 wrote: there is a small hissing sound coming from the passenger side condenser.

Do you mean "evaporator", like under the dash?