AC Compressor and Accumulator Replacement Help

[Bigfoot-NM]

I went out to the Jeep the other day and there was a small oil spot directly under the front differential. After careful research, I found the rear of the AC compressor was leaking oil down on the differential and it found its way to the ground directly below the differential.

Anyhow, I now am going to replace my compressor and my accumulator and I am confused as to how much oil I will need to add to the system. Here is the chart from the 2006 manual:

REFRIGERANT OIL CAPACITIES
Component ml oz
Total System Fill 180 6.1
Accumulator 90 3.0
A/C Condenser 22 0.75
A/C Evaporator 45 1.5
A/C Compressor Drain and measure the oil from the old compressor


1. I can't drain the compressor because some (if not all) of the oil leaked out.
2. Replacing the Accumulator means approximately 3.0 ounces (based on the chart)
3. I'm going to flush the Condenser, so that should mean another 0.75 ounces (based on the chart)

The only part I'm not touching is the Evaporator under the dash.

The new compressor came with 6.7 ounces of oil in it.

So, can someone help me figure out how to handle this?

1. Do I just install the compressor with the 6.7 ounces of oil in it and call it good?
2. Do I estimate that there is still 1.5 ounces sitting in the evaporator and deduct that mount from the 6.7 ounces in the new compressor?
3. Do I use the Total System Fill number of 6.1 ounces Meaning I would estimate that there is 1.5 ounces in the Condenser and then remove approximately 2.1 ounces from the new compressor and that would get me to the 6.1 ounces (Total System Fill)?
6.7 + 1.5 - 2.1 = 6.1 ounces.

Any suggestions would be appreciated.

 

[TJ4Jim]

I went out to the Jeep the other day and there was a small oil spot directly under the front differential. After careful research, I found the rear of the AC compressor was leaking oil down on the differential and it found its way to the ground directly below the differential.

Anyhow, I now am going to replace my compressor and my accumulator and I am confused as to how much oil I will need to add to the system. Here is the chart from the 2006 manual:

REFRIGERANT OIL CAPACITIES
Component ml oz
Total System Fill 180 6.1
Accumulator 90 3.0
A/C Condenser 22 0.75
A/C Evaporator 45 1.5
A/C Compressor Drain and measure the oil from the old compressor


1. I can't drain the compressor because some (if not all) of the oil leaked out.
2. Replacing the Accumulator means approximately 3.0 ounces (based on the chart)
3. I'm going to flush the Evaporator, so that should mean another 1.5 ounces (based on the chart)

The only part I'm not touching is the condenser under the dash.

The new compressor came with 6.7 ounces of oil in it.

So, can someone help me figure out how to handle this?

1. Do I just install the compressor with the 6.7 ounces of oil in it and call it good?
2. Do I estimate that there is still 0.75 ounces sitting in the evaporator and deduct that mount from the 6.7 ounces in the new compressor?
3. Do I use the Total System Fill number of 6.1 ounces Meaning I would estimate that there is 0.75 ounces in the Condenser and then remove approximately 1.35 ounces from the new compressor and that would get me to the 6.1 ounces (Total System Fill)? 6.7 + 0.75 - 1.35 = 6.1 ounces.

Any suggestions would be appreciated.

All you have to do is drain the compressor and install the remainder after filling the other components.
Also it would be wise to replace all the O rings at every connection and lube them properly.

I hate that stupid note about measuring the oil in the FSM. If your replacing the compressor generally it's due to some failure so I'm supposed to trust the existing volume, freaking BS.

Good Luck.

FYI: Your evap coil is in the hvac box and the condenser is in front of the rad

 

[Bigfoot-NM]

All you have to do is drain the compressor and install the remainder after filling the other components.
Also it would be wise to replace all the O rings at every connection and lube them properly.

I hate that stupid note about measuring the oil in the FSM. If your replacing the compressor generally it's due to some failure so I'm supposed to trust the existing volume, freaking BS.

Good Luck.

FYI: Your evap coil is in the hvac box and the condenser is in front of the rad

Thanks for the correction between the evap and condensor. I corrected the original post.

The oil has already leaked out of the compressor so there isn't anything to measure there.

 

[TJ4Jim]

Thanks for the correction between the evap and condensor. I corrected the original post.

The oil has already leaked out of the compressor so there isn't anything to measure there.

I understand that, just fill the devices correctly and add the remainder of the total fill to the compressor and your good to go.