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How much oil in empty 1.5 ton compressor ,and how to charge the oil in compressor

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How much oil is required for a new AC compressor 91 ford ranger, 3.0, the system is completely empty, (replacing compressor, no oil in it)


System 7 to 9 oz

Condenser 1 oz
Dryer or Accumulator 1 0z
Evaporator 3 oz
Compressor 3 to 4 oz

On most vehicles

You have a big problem---no R12 has been avail for the
last 15 years

SO-- you need to flush every component of mineral oil
& replace with ester or pag,then switch to R134A refrigerant

That may require a compressor built for those pressures &
"o" rings such as the green ones

Need to research what your doing

Sep 12, 2012 | 1991 Ford Ranger Supercab

1 Answer

Cant find refrigerent leak on 04 trailblazer


Mechanics use dye or a device that "sniffs" for leaks since the gas is hard to see.
Putting in fluorescent dye allows you to see the dye with a black light.
The sniffer picks up a component of the gas.
If the system was charged before you replaced the compressor, the leak should be at one of the gaskets you replaced, or you have a defective compressor which is leaking at the pulley seal.

Jul 01, 2012 | Chevrolet TrailBlazer Cars & Trucks

3 Answers

A/c on 97 chevy blazer v6 will not stay on unless I hot wire it and then it still blows hot air. what might be the next thing i check or do to find the problem?


It is probably low on freon. The low pressure switch will turn it off to protect the compressor because it needs the freon to circulate the oil. Hot-wiring it defeats the purpose of the low pressure switch and runs the compressor without oil. If you have not already destroyed your compressor by hot-wiring it, you can probably get it working better by charging the system.

Jun 01, 2011 | 1997 Chevrolet Blazer

1 Answer

How to install a 1999 yukon ac compressor


Hi.

Follow below...

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REMOVAL PROCEDURE

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

1. Disconnect the negative battery cable.
2. Recover the refrigerant.
3. Remove the drive belt.
4. Disconnect the refrigerant hose assembly from the compressor.
5. Cap or plug all of the open connections.
6. Disconnect the electrical connectors, as necessary.
7. Remove the bolts.
8. Remove the compressor from the bracket.
9. Drain the compressor oil.
10. Measure the compressor oil. Refer to Adding Oil .

INSTALLATION PROCEDURE

1. Fill the compressor with oil. Refer to Adding Oil .
2. Install the compressor to the bracket.

NOTE : Refer to Fastener Notice in Cautions and Notices.

3. Install the compressor mounting bolts.

Tighten
Tighten the bolts to 50 N.m (37 lb ft) .

4. Connect the electrical connectors, as necessary.
5. Install the refrigerant hose assembly to the compressor.
6. Install the drive belt.
7. Connect the negative battery cable.
8. Charge the system. Refer to Refrigerant Recovery and Recycling, Adding Oil, Evacuating and Recharging Procedures .
9. Inspect the system for leaks.

I hope this helps.

Thanks...

Dec 03, 2010 | 1999 GMC Yukon

1 Answer

A/c compressor does not engage. with gauge the low pressure checks ok. was working two days ago. checked 1 - 10 and 1 - 15 amp fuses, okay.


Take this to an A/C shop, low ref. level can cause this issue and the thermal limiter costs TONS less than compressor failure.

You need a qualified diagnosis. If low ref, then exposure to low oil level. All of the fixes require special tools and training to correctly fix.

Jun 12, 2010 | 1998 Oldsmobile Intrigue

1 Answer

AC compressor


doesnt mean system is empty,because no oil came out off compressor,unless the system was flush and should be flushed with cleaner, then the system would hold 10oz, of oil,also make sure to spin compressor by hand 10 times to get the oil and liqiud out of cylinders,add a couple ozes of oil in dryer then compressor and the evaporator core to equal 10oz of oil,after added oil to compressor stand on pulley to coat seal let sit for 10min, then after all line are connected then you spin 10 turns, hope this help,

Jun 08, 2010 | 1989 Ford Ranger

2 Answers

When i turn on ac it blows hot air


Normally due to low freon. Also, notice if the a/c compressor clutch engages, as it will not if the freon is low.

Jun 05, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

I am recharging the AC System but the system is not pulling from the can. IS it possible for the system to be fully charged, but another component to failing and the system does not need charged?


what you can do is remove the connector from the low pressure switch. it is located on the line where you connect the can of refrigerant when recharging. probably near the accumulator bottle or directly attched to it. jumper the contacts in the connector with a paper clip. this will keep the compressor on in order to draw the refrigerant into the system. operate the compressor in 15 second intervals on and off. when the can stars to get cold plug the connecter back into the switch. if the compressor cycles your ok. continue untill the can is empty. if the compressor doesn't cycle, continue following the procedure. if the compressor still doesn't cycle, you may have a large leak. also your system is probably almost empty and requires repair and professional care. a/c systems require a good deal of knowledge and i would recommend having a professional take care of the problem.

do this at your own risk as there may not be enough oil in the system and the compressor could be damage

May 31, 2010 | 2001 Ford Windstar

2 Answers

Ac compresor will not kick in


IS THE SYSTEM CHARGED UP, NO CHARGE NO AC COMPRESSOR OPERATION.

Nov 05, 2009 | 1997 Buick LeSabre

1 Answer

Activating a/c button does not cooling the air


may be is empty of gas.open the bonnet and press the charging valve pin only for a 1/2second if is got pressure the system is charged then start car,on a/c and check if the compressor clucth is spining,it can be the High pressure sensor
note:if system is empty the compressor not work(that info. is via high p.s.)if h.p.s is not good compressor not work even if system is charged
I hope to help you

Apr 05, 2009 | 2000 Saab 9-3 Viggen

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