Automotive Air Conditioning Information Forum

kenlou wrote: Tue Jul 15, 2025 8:26 am I would add that to the high side in other words, inlet side of the evaporator, correct?

Since there's currently no charge, I'd add to the most convenient place. Even if you are suspecting/checking for a leak in the evaporator.

kenlou wrote: Tue Jul 15, 2025 4:46 am Can I add the dye into the evaporator also the same time I add the pag oil?

Yes; the PAG oil and refrigerant will distribute the dye throughout once the system is charged and compressor operating.

Be sure to use the green HNBR o-rings of the correct size, coat them and the mating surfaces with Nylog Blue (a little goes a long way), reassemble, evacuate, recharge to specs, and I doubt whether you'll have any more leakage problems.

I recommend having on hand a compartmented plastic box of ...

Go to a store and buy some kids bubble blowing solution.

There are "recipes" to make bubble solutions at home from dishwash liquid, like adding sugar or glycerin, etc. Google that.

TomIbert wrote: Fri Jul 11, 2025 5:44 am I still smell Freon each time I start the truck. My cheap electronic detector will alarm for several seconds when I turn the key to ON.

Is your detector in the air vent for this? Is this with the ignition and fan on, or the engine running and AC switched on? You didn't make clear....

Mist the condenser with water to see if the high side pressure at 2000 rpm drops considerably. If so, test the fan clutch.

Please help! I noticed my floor boards in my 2002 pathfinder were soggy

That seems like the drain from the evaporator case is not working correctly, if passenger side floor board.



opened the hood to see water slinging off the line from TXV to compressor.

Hmmm -

High pressure line goes ...

Did you call Tim at ACKits.com to discuss? He might be able to help you.

Even if a new replacement compressor comes filled with PAG oil, you can drain that oil and flush with R-12 type mineral oil by rotating the compressor drive plate a dozen times, then dumping that, then repeating, if you don ...

Disclaimer: I'm NOT an AC professional.

1. Did this vehicle have working AC and then it stopped working? Or just not working since you got it?

2. Has a shop pulled out the refrigerant and weighed it to determine if the charge amount is correct?

Disclaimer 1. I am NOT an AC professional

Disclaimer 2. I have zero experience with a 1995 G20 conversion van

In general, air can come out the main vents at the driver, at the windshield (defrost position), or under the dash (heat position) or a partial combination of those.

But here's what I ...