Total Amount of AC PAG oil needed for a 2000 Jeep Cherokee sport
I need to replace my compressor and collector. I will flush out my whole system, but do not know how much PAG oil my system needs. I know the amount of needed refriderant because its posted on my hood. I also know the amount of PAG oil needed for the new compressor. Does anyone know where I can find how much PAG oil is needed for the whole system? Or is there a general guideline? i.e. so many oz's of oil to so many pounds of refriderant? Any help would be appreciated.
Re: Total Amount of AC PAG oil needed for a 2000 Jeep...
Do you have the old compessor? Drain out what is in there and use that amount as a guide + 1 oz. There is no ratio per se. As long as you are close without being crazy low (none) or crazy high (over flowing), you're good.
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Should have a sticker on the radiator core support that shows how much it takes . But if your's is missing here
Refrigerant System Capacities
PAG Oil GM P/N 12378526 for United States
PAG Oil GM P/N 88900060 for Canada
* Add 60 ml (2 oz.) of PAG oil, plus the equal amount of oil drained from the accumulator.
The Delphi replacement compressor is precharged without PAG oil.
The Denso replacement compressor is precharged with 237 ml (8.0 oz) of PAG oil.
Evaporator, Rear Replacement
If more than the specified amount of PAG oil was drained from a component, add the equal amount of oil drained.
Total System PAG Oil Capacity
Total System PAG Oil Capacity with Rear A/C
Refrigerant Charge Utility with Front and Rear A/C
Refrigerant Charge Suburban with Front and Rear A/C
Assume you mean the Ac compressor if so then i normally stick 50cc of pag oil plus a small mix with this of the yellow dye ,the gas is supposed to be a lubricante but??? .If i have run out of PAG oil then i will use hydraulic oil for power rams ect without any effects so long as its a thin oil then its ok .Yes i know iam a cowboy but? you have to know how it works to be able to know what will work and what will not
The system oil capacity (Total- if all components replaced or flushed) is 10.0 oz. Manufacturer oil proceedure for the compressor alone is to drain and measure oil from the old compressor (make sure to turn shaft a few times to get it all out) and add the same amount of new oil to the new compressor. Chrysler says that you must use a sp15 PAG oil.
Note that you must flush the entire system when replacing the compressor in order for the warranty to be valid on the replacement part. Also require is the replacement of the drier assembly.
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It cost me around $220 for parts from AutoZone (AC Compressor, Accumulator, Orifice Tube, and Refrigerant Oil). I had to have it professionally evacuated and charged by Firestone and that cost me $80. I didn't flush the system because my compressor didn't blow up and throw chunks out. I made a video on how I did it. So far it's working great!
you need a a/c machine that recovers and recharges the refrigerent for starters...recover system... take belt off... disconnect any hoses wires etc... remove fasteners.... new pump may or may not come with oil... if no oil add 4 oz. to compressor through hole... if compressor blew up- lines need flushed and drier will need to be replaced... a new drier takes about 6 oz of oil. pag is the type of oil needed....recharge system to spec...
The oil spec is PAG 150--68.00 ounces. General Motors issues Bulletin # 02-01-39-004B replacing PAG 150 oil with a lower viscocity oil. Thus, now indicates PAG 46 (P46D) oil for those vehicles.
There is a high pressure side and low pressure side to the system. The high vapor=compressor to the condensor. Low side vapor=compressor to evaporator. Your system will use R134a freon.
The A/C is a sealed system and when the compressor fails it circulates debris throughout the A/C system and contaminates it. Before replacing the compressor several other A/C parts have to be checked or changed.
Typically, the condenser should be flushed to remove any debris or contaminated compressor oil. Use approved flushing agents (aresol or liquid pour types), that evaporate quickly and don't leave any residue in the system. You will also need access to 'DRY' compressed air or nitrogen to push the flush through the system. Nitrogen (an inert gas), is best because it doesn't introduce moisture into the system. You need to do this a couple of times.
Accumulator or receiver drier should be replaced when you are replacing your A/C compressor. If don't replace your accumulator or drier you will probably void your compressor warranty. It's virtually mandintory to replace the orifice tube or expansion valve. The openings are usually about .050" and are quickly plugged. Be sure to clean all hose assemblies internally prior to installing your new compressor. Not doing this could contaminate your new compressor. Flush both ways until the flush agent exiting is clean, you will need to remove the hose assemblies to do this.
After you have cleaned, inspected and replaced all the parts, you connect the vacuum pump and remove the air from the system. Make sure it holds pressure. Then recharge the system with the proper freon and oil to the system specified levels.
No matter why you are replacing the A/C compressor there is a lot of other related work that has to be completed before you install the new compressor. Hope this helps, good luck.