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Help me verify it's the compressor

Desp on Thu April 14, 2011 11:55 PM User is offline

Year: 2000
Make: mitsubishi
Model: eclipse
Engine Size: 2.4
Ambient Temp: 75f
Pressure Low: 90psi
Pressure High: 100psi
Country of Origin: United States

I'm helping a friend with their eclipse, and I just want to verify it's the compressor that's not working before we tear it apart.

Air stopped blowing cold, I check it with my gauges and I get 100psi hi/low when a/c is off, turn on a/c (i can see clutch kick on) and low drops to 90 and high around 110 or so. I feel like the obvious issue is the compressor is bad. If it was any of the pressure switches the clutch would never kick on, right?

Secondly if it is the compressor, other than the drier is there any must replace components or can it be flushed. They are trading in their car in 6 months after they get out of school so it only has to last until then, so longevity would definitely be outweighed by cost in this situation.

TRB on Fri April 15, 2011 5:00 PM User is offlineView users profile

It's a scroll compressor. If you don;t have the proper amount of refrigerant you may not get proper pressure readings. Confirm you have the refrigerant capacity in the system.

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Desp on Sat April 16, 2011 4:31 PM User is offline

Quote
Originally posted by: TRB
It's a scroll compressor. If you don;t have the proper amount of refrigerant you may not get proper pressure readings. Confirm you have the refrigerant capacity in the system.

Is there a way to verify the amount without a reclaimer or without refilling it and possibly wasting $30+? wouldn't 100 psi with the system off be kinda high if it were low on refridgerant?

Dougflas on Sat April 16, 2011 5:14 PM User is offline

100psi is dependent upon the anbient temperature. You can have 6 oz of refrigerant in the system or 2 lbs and the pressure will be the same if the compressor is not running. In answer to your question of "wasting $30.+ ", you are SUPPOSED to have the proper equipment to recover/reclaim refrigerant. One of the first steps of trobleshooting involves verifying proper charge. Otherwise, you're gambling and usually wasting time and $$$$.

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