There is a good chance that the compressor isn't damaged at all. All modern automotice A/C systems have a low pressure cut-off switch to prevent the compressor from running in the event that the refrigerant runs low, or completely out. Grab a can of R-134a refrigerant (they sell them with the gauge built on to the can these days) and hook it up. Turn the A/C on in the car and begin filling the system, once the pressure reaches a high enough level in the refrigerant system, the compressor should kick on (you'll hear it click and start to run). That should answer both questions. :)
You will have to replace the refrigerant, but not the engine coolant.
Nothing will happen if you drain the cooling system and replace the coolant.
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REPLACE THE COMPRESSOR If the AC compressor is seized, you don't have many options. Yes, you
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how to replace AC compressor on a 97 Buick park Ave
It is next to the thermostat housing. No not on my 2005 5.7 hemi it is under the a.c. compressor which has to be removed to replace
Open the drain out valve at the bottom of the radiator to allow the coolant to run out. Replace the valve and add the fresh coolant.
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The compressor will seize. They are very costly to replace.
drain out coolant to a point were hose is clear, remove hose then replace,add coolant to bring up to normal level...will loose a bit of coolant but not much!!
call a mechanic
you have the mechanic do it for you
This is not cost effective. It's quicker and cheaper to replace the compressor.
Drain coolant, disconnect the battery. Disconnect the coolant line, replace the thermostat with a new one. Do not forget to replace the gasket too. Reconnect the line. Refill coolant, connect the battery.
New AC compressor for my 93 Ranger was $156.
No, not by the average home mechanic. Bad compressor? Replace the entire unit.
form_title= Compressor Oil form_header= Replace the compressor oil in your car. What model compressor do you have?*= _  Has the compressor ever been replaced?*= () Yes () No What type of oil does your car use?*= _ 
Well the compressor is not hard, I think (without looking at it) it is like 4 bolts, and a couple of connections. The problem is that most good A/C guys will tell you to replace most of the system at once or when you replace the compressor, you will have to replace most of the parts, one after the other, and perhaps eventually replace the compressor again not to far out... From what I understand... the compressor tears parts up inside, and sends them through the lines to the other parts, eventually eating each of them up.
To replace the AC compressor in a 1999 Grand Prix you must first remove the AC belt. Then disconnect the negative battery cable before removing the compressor bolts and connectors and removing compressor.
Sounds like the compressor is shot and it would be best to replace both. Unfortunately when the compressor goes bad it sends metal trash throughout the system. If you replace the compressor with out having the system flushed clean (which is almost impossible to do) the trash in the system will eventually destroy the new compressor.
What kind of car and which switch. There are several that can effect compressor operation.
my ac compressor is bad and i want to change it myself how can i do this