Anywhere between $1000 and $1600; just depends on what all needs to be replaced. Usually you can just replace the compressor and receiver/dryer, clean the thermal expansion valves (1 for just front ac, 2 if you have rear ac as well), flush the lines and evac/recharge. Sometimes you need to replace the thermal expansion valves as well. Then of course the system would have to be evacuated and recharged. If you've already had a shop look at it and they're not explaining all that to you, I would go somewhere else.
my ac compressor is bad and i want to change it myself how can i do this
(I recommend you take it to a garage as if you get too much in it you can lock the compressor or it won't cool right .
You remove the compressor and replace the belt with one for a truck with out ac
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If you did not replace the expansion block valve and the receiver drier then you will need to do this as well..............
The air conditioner has failed in some way. Either the compressor has failed or the pressurized refrigerant has leaked out. DO NOT operate the air conditioning until the problem has been fixed, the refrigerant contains oil to lubricate the compressor, which, if the refrigerant has escaped, will be damaged without lubrication. Don't turn a cheap fix (refrigerant recharge) into a very expensive one (replace compressor).
if you havent ever changed one before then you shouldn't mess with it, the freon inside the compressor is poisionest, it needs to be drained, new compressor installed, filled with dye to test for leaks, drained again and then re-fill with freon.
With a compressor bypass kit from a part store.
It you are talking about the lower bolts then you need to remove the drive belt and the top compressor bolts and slightly move the compressor to the side and then tighten up the lower bolts and remember that you do not need to discharge the a/c system................