Miggy wrote:I brought the car to the other shop ....This shop didnt have a thermometer to check vent temps

Not having a thermometer to check the vent temperatures??? So weird !

Anyway, maybe his got lost or broke a few days ago....the real test is driving it in the heat and seeing if you're comfortable.

xyz wrote:Now the compressor appears to be working...
Any thoughts?

Appears??? Turn on the engine and AC, visually determine if the CENTER part of the AC compressor is turning, not just the outer pulley.

With today's Phx temperatures, I would hope for lower, but maybe that's what a Nissan Maxima can deliver. Of course it's only about 85F here today outside, so will get 30F higher in summer. My 1998 and 2004 Nissan Frontiers have great AC, and those have their condenser/radiator cooled by a fan clutc...

I'm also in Phx, and within the last couple of months I've seen pure R134a cans (NO SEALER !!!) with the traditional tops still on the shelves at both Home Depot and WalMart, $4.88 per can.

I also have a side tapper gizmo.

It's good that you actually did not add any refrigerant. Because unless you just omitted that step from your post, you need to evacuate the system.

And agree about low side service connector not depressing the Schrader valve. Betting the refrigerant can itself did not get freezing cold.

The radiator fan does blow air towards the rear of the car, correct?

MacAmb wrote:I used a soup bubbles but couldn't find a leak

Well, I've heard that chicken soup can fix anything !!!

MacAmb wrote:i can see a little oil drops on the High pressure pipe surface.

That's what I mean with "visual inspection". If there's refrigeration oil getting out, so is refrigerant.

MacAmb wrote:Yea checked the pipes couldn't see any leaking .but what is causing Refrigerant to be low?

A leak. Oftentimes a combination of visual inspection, UV dye, electronic sniffer, and soap bubbles must be used to find a leak.

MacAmb wrote:Updated:
at 2000rpm H was about 125psi
The L was 20 psi

Refrigerant leak. Or refrigerant low to start with after repair.

Can you provide both high and low AC pressures at about 2000 rpm? And are all the electric fans in the engine compartment spinning when the AC is on?