Need to replace ac compressor

how do you know if it is actually the ac compressor that is at fault ( perfectly good ac compressor from a wreckers /junk yard are available to suit your car at around 70% saving on a new unit )
there are several safety switches in the system that prevent the ac compressor from working
the main reason for ac failure is loss of gas from a leak
next while you can replace the ac compressor yourself , if you have the tools and the know how you will still need a vacuum pump to vacuum the system down to remove the air and a set of gauges to get the right pressure when regassing
first move is to go to an ac specialist shop and have it properly diagnosed and a quote
Then you will and an idea how much you will have to save to get it fixed

It isnt hard to replace, but, it is illegal to vent refrigerent into the atmosphere(If theres any in the system?!), also you would needs a few "special" tools(vacuum pump, and a/c manifold gauge set to recharge the system! A shorter belt is always available, But, depending how the belt is supposed to be run, you may not be able to go that route! You could try searching for "ac bypass pulley" if you dont want to keep the ac working!(alot cheaper than buying an ac compressor!

If the pulley on the compressor will not turn freely, then yes if a bypass pulley exists you would need to use it in place of the compressor.
If the compressor pulley turns but the compressor is locked up, just unplug the compressor clutch.

When a a/c compressor is replaced and a new or rebuilt is to be installed,all part supplier will not warranty the compressor without replacing the accumulator.So its true

i dont know of any domestic cars that dont have rebuildable/replaceable clutches on the compressor. best way to find out is to call a parts store and see if you can get the part.

TO REPLACE THE AC COMPRESSOR, YOU NEED TO LET GARAGE OR DEALERSHIP DISCHARGE AC SYSTEM FIRST.YOU NEED TO FLUSH OUT AC SYSTEM USING CAN OF AC FLUSH.YOU NEED TO REPLACE ORIFICE TUBE,YOU NEED TO REPLACE ACCUMULATOR, BESURE TO ADD 1 OUNCE REFRIGERANT OIL TO ACCUMULATOR,AND NEW AC COMPRESSOR POUR OUT THE SHIPPING OIL IN A SMALL CONTAINER MEASURE AMOUNT IN AC COMPRESSOR POUR NEW REFRIGERANT OIL AC COMPRESSOR .IF NOT SURE TO BE ON SAFE SIDE POUR 2 OUNCES OIL IN COMPRESSOR.BE SURE BUY NEW AC O - RINGS AND SEAL KIT.WHEN ALL IS DONE EVERY THING BACK TOGETHER BE CHEAPER TAKE CAR TO A GARAGE LET THEN PUMP DOWN EVACULATE AC SYSTEM CHECK FOR LEAKS AND REMOVE MOISTURE OUT THE SYSTEM. YOU NEED AC TOOLS TO REPLACE AC COMPRESSOR.YOU NEED VACUUM PUMP, MANIFOLD GAUGE SET.YOU NEED AC LINES DISCONNECT TOOLS TO REMOVE ACCUMULATOR.YOU HAVE TO HOT WIRE AC COMPRESSOR WHILE CHARGING IT UP.BE SURE TO WEAR SAFETY GLASSES WHILE WORKING ON AC SYSTEMS.

when you replace new compressor/you shoud have to flush ACsystemby usingR11 AND needto replase expantion valve .after that you need to vaccuming AC system.also put AC compessor oil and refill 134A gas.

When replacing the compressor the dryer should also be replaced, you put 2oz of oil in compressor and stand compressor on pulley for 5 min, then after install turn clutch 10 turns to pump most oil out of compressor, the dryer should have 2 oz of oil also, if you are flushing the ac system out with a solvent then more oil is needed for the system, if your just replacing the compressor then 2oz in compressor.

bypassing the compressor is best to do. get a belt for your engine less the ac option. the removal and tear down of any compressor is not easy for a novice

U should replace the receiver drier, also called the accumulator, replace the high side line fixed orifice as well, you will need to drain the old compressor and measure the oil as well and add 6 ounce's to that amount you measured from the old ac compressor. and of course you will need approx four 14 ounce cans of R134