A/C issues

[SciroccoDamonte]

Yes more issues on this landcruiser. I recently tried recharging my ac. I had an analog gauge and when i plugged it into the low side it read 150psi and the system wouldnt take any coolant. This was with ac on in the truck and fans blowing. I then tried bleeding the system of pressure which seemed to work, lots of pressure in the system. Once it read zero i turned the ac back on and plugged in the coolant, it seemed to take a little bit of coolant but then immediately shot up to 150 psi again. It should be noted that when i bled the system it was mostly air with just a tiny bit of coolant. I bled the system a couple times but the same issue, the system would fill very quickly with 150psi of air. Take a tiny bit of ac coolant then stop.

 

[Rusty Marlin]

That post is so screwed up I'm not sure were to even start.

Lets start with definitions:
Coolant: a glycol based liquid that goes in radiator based cooling systems for transfering excess heat away from internal combustusion engines.
Refigerant: a liquid/gas phase transfer medium that is used to pump heat away from an area it's not desired, i.e. from inside the car to outside the car through a system of expansion to a gas phase (absorption of heat), condensation back to liquid phase (rejection of heat) and a pump to pressurize the gas and move it around.
Air: a geneally excepted mixture of ~80% nitrogen and ~20% oxygen that sustains resperation and life on this planet.

Care to rewrite that question with those definitions in mind?
Otherwise I'm going to suggest you never touch your AC system and just take it to a shop, because it's appearent you haven't the foggiest clue how it works.


I re-read that and it was awfully harsh and prickish... Do you have proper guages or are you using the one on the "add-a-can"?
Have you read the Sandon AC diagnostics chart?

https://www.sanden.com/objects/SANDEN_SYSTEM_DIAGNOSIS_CHART.pdf

I'll help you get it sorted, but you need to have a basic understanding of this or your're going to make a mess of it.

 

[ADVFJ80]

For what it's worth, I had similar issues and waaaay overcharged my aircon system. I used the craptastic gauge that came with a can of R134a from O'Reilly's.

I took to my mechanic and had a full aircon service done. Thisnwas my lesson learned from trying to charge an A/C system- take it to a pro. They'll be able to do so much more with the proper service equipment including a full bleed and pressure test, additing to correct amount of oil and refrigerant to the system. Best $120 spent.

Now my aircon actually cools the interior, despite the acres of glass in an 80, and an unrelenting Arizona sun!

Hope this helps
Randy

 

[Marvelicious]

Yes more issues on this landcruiser. I recently tried recharging my ac. I had an analog gauge and when i plugged it into the low side it read 150psi and the system wouldnt take any coolant. This was with ac on in the truck and fans blowing. I then tried bleeding the system of pressure which seemed to work, lots of pressure in the system. Once it read zero i turned the ac back on and plugged in the coolant, it seemed to take a little bit of coolant but then immediately shot up to 150 psi again. It should be noted that when i bled the system it was mostly air with just a tiny bit of coolant. I bled the system a couple times but the same issue, the system would fill very quickly with 150psi of air. Take a tiny bit of ac coolant then stop.

Was this before or after you had the temperature redlined? You need to make sure it runs properly before you worry about AC!