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AC Clutch issue and may be compressor problem

XJOutsider

NAXJA Forum User
Location
Landenberg, PA
My 96' Cherokee was completely move and all new lines, dryer, and condenser. I was trying to recharge the system from empty. I use a piece of wire to jump the low pressure switch to get the compressor to start. It made an Klink sound when the clutch engages. It had be sitting for 6 months. The low presser side reads 80 PSI and High side is 96Ish PSI.
The system is not leaking.
 
My 96' Cherokee was completely move and all new lines, dryer, and condenser. I was trying to recharge the system from empty. ----
The system is not leaking.

Not sure I understand what you're saying here, but it appears you replaced a few major components, and are trying to re-charge the system now?
If that's the case, you MUST vacuum the system to remove all moisture before adding new freon. This is done with the compressor not running.
Additionally, replacing the items you mentioned also requires adding refrigeration oil to the system to replace what was lost; you don't want to run the compressor under lubed.
If the system has been completely discharged, you can't recharge by merely adding cans of freon.
As you suspect, something may be wrong with your compressor--especially if it sat open to the atmosphere for any length of time.
Your gauges should tell you whether the compressor is operating. You should see your high-side pressure increase with the compressor running; however, other than a very quick test, I wouldn't run the compressor until the system is properly vacuumed and recharged with freon and additional oil.
 
Thanks For the the Reply. I Drained the compressor and Filled it with new Oil.
I gues My next step would be to vac the system.

Can you fill the Freon with out the compressor running?

I am still really new to this. and have not found a good write up on it.

The Clutch on the Compressor make a terible noise klink nose when it diseguage.
 
You need a good book on basic refrigeration.
Moisture and contaminants are the killers of refrigeration systems. Not only do leaks allow refrigerant to escape, they also allow air to enter the system. Air means moisture. The only way to remove the moisture is by vacuuming with a specialised compressor. The basic steps are pulling the correct amount of vacuum for an extended period of time to remove all moisture. Using the correct procedure, the vacuum pump is turned off, and disconnected from the system without loosing the vacuum. The freon is then allowed to enter the system, while it's still under a vacuum. This is called charging the system, and needs to be done in correct manner. The compressor is not running when this is done.
You state you "filled your compressor with fresh oil" If you didn't follow the manufacturer's directions, and literally :"filled" the compressor with oil, you could have big problems. If you did this, drain all of the oil out, and start over, using the manufacturer's guidance.
If you want to service/build your own refrigeration/air condition systems, get a couple of books such as Haynes Automotive Heating and Air conditioning, or Refrigeration for Pleasure boats (by Nigel Calder). Calder's book gives you the nitty gritty of building/maintaining basic systems, while the Haynes book discusses the basics as they directly apply to cars and air conditioning.
Good luck
 
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