AC oil

Good afternoon.

When the Freon was recovered, how much oil was recovered?

I suggest replacing the receiver/dryer assembly since the system was open to outside air.

I would add two ounces of oil to the system if you replace the dryer.

Use Pag 100 oil.

Why did they remove the compressor?

I have never removed the compressor in the dozens of timing belts I have replaced on this model?

Roy

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

So do I have to replace the dryer? I did not removed the compressor. I do not know how much oil was recovered.

If the lines were opened, then yes. Once outside air gets into the system, it contaminates the bag in the dryer.

Roy

So replace dryer and add two ounces of oil.

Correct. The two ounces is for the new dryer.

Roy

How much oil you think came out when A/C was evacuated? How much need to add in additional of the two ounces for the dryer.

Only the person who recovered the Freon can tell you. If they used a machine, as they should have, they should see the oil in the tank that was recovered.

Generally, there is little or no oil recovered but every system is different.

Roy

The other thing how to add the two ounces of oil?

It is done through the machine that is doing the evacuation and charge or you will need an oil kit from a parts store. It looks like a caulking gun and attaches to the oil bottle. You will inject it into the system after you vacuum it for forty minutes, add the Freon after you add the oil.

Roy

Under the hood it says refrigerant 1.125 LB is this the max charge ? Is there another way to inject oil beside using the tool?

That is the exact amount of Freon that needs to be added for the system to work correctly.

No, there is not. You need that tool. A parts store will have this for you.

Roy

At Walmart they have A/C Pro r134 pag oil charge with ice 32 performance enhancer. It is in compressed can of 3 oz 1 oz oil 1 oz pag 100 1 oz ice 32. Can I use two cans of those instead to use the tool which is expensive for my budget?

No, use 134. substitute Freon do not work well at all.

Pag oil is good.

Roy

Okay, I think you misunderstood, sorry.

At Walmart they have Pag 100 oil in compressed can of 3 oz. In one can there are 1 oz of R134, 1 oz pag 100 and 1 oz of ice 32 performance enhancer . Can I use two cans of those instead to use the tool to inject oil which is expensive for my budget? After I will add 16 Oz of R134.

Okay, sorry.

Do not use the performance enhancer, just the 134 with oil.

Roy

Okay, thank you.

You are welcome. Keep us updated.

Roy

I want to add some UV dye. What is the quantity needs to be added and what kind?
Thanks

If you are using cans to fill the system, just add one can with UV dye.

Roy

Yes I am going to use cans. Which I have already purchase without UV on them.

Okay, you can return one and replace it with one with UV.

Easy to do that.

Roy

Okay, I replaced the accumulator drier. Vacuumed the system for half an hour and check for leak for two hours. No leaks after I vacuumed it again for an hour and a half. I added Freon the first can went great the second can I should add from it six ounces. The scale I bought turned off when I was adding Freon. I think I put six ounces from it. However, what I noticed after at idle the compressor kept running and the temperature was 50 degrees. When I drove the car the temperature went down to 40 at max AC aka re-circulation went down to 37.

Okay, sounds good.

Do you have a concern? It sounds like it is working good.

Roy

Should the compressor cycle at idle? It was cycling when I was adding the first can but after that when adding the second it ran continually. What about the temperature at idle is it normal?

The compressor cycled due to Freon level low. Once you filled the system it will stay running.

The temperature is good at idle. Even better while moving.

What was the high side and low side pressures at idle?

Roy

At idle high side was between 250 and 275 and low side above 50 around 53.

A bit high but good. Did you make sure the radiator and condenser fins are clear of any dirt and debris and you have good air flow from the fan?

Roy

Yes, I cleaned the condenser when I did the timing belt. So should the compressor cycle or not?

Thank you.

Nope, there is no need with the readings you have.

In my opinion, you are good to go.

Roy

I will clean the condenser again and straighten the fins. The other thing is I had problem with the fan it was not engaging and the car was overheating. The problem was the fan connector was sparking and burn out. I just tighten the pins.

Okay.

I would get a new pig tail for the connector and replace it.

Roy

Today I cleaned the condenser and straighten the fins. Temperature is the same. Also I checked the fan operation. There are two relay's on the top of the fan. When I jumped the first one the fan run. When I jumped the second one the fan ran with the same speed. I heard this car has two speed fan? Low and high. How the computer command the high speed fan?

The TIPM or the fuse box controls the high speed fan. The dark blue/orange wire should be hot to run the fan at high speed. If that wire is hot or has voltage, the fan itself is the failure.

Roy

The compressor making little noise when initially turn the AC on. After few seconds goes away.

Okay, that sounds like the compressor is low in oil. That oil is separate from the Freon system. In order to check this, the compressor will need to be removed and the oil drained. Compare that to what the spec is for the compressor. Add as necessary.

If you do not do this, the compressor will fail.

Roy

The spec is 5.5 ounces of oil.

Roy

So I need to drain and add 5.5 oil to the compressor. Do I need to consider the oil left in the lines, accumulator. etc?

No, separate system for oil.

When you recover the Freon, there should be little or no oil recovered from the Freon system.

Roy

So what I need to do is to remove compressor,empty it from its oil, put 5.5 oz oil in it and do not worry about the oil left in the other parts?

That is correct.

Roy

I am confused sorry.
I did some recherche I found out:
Total system capacity 6.1 oz.
Filter drier 1.0 oz.
Condenser 1.0 oz.
Evaporator 2.0 oz.
All refrigerant line 1.5 oz.

If i put 5.5 oz in compressor the system will have 10.5 oz of oil which is too much.