The way you are suppose to change the a/c compressor is remove the front bumper the radiator support the a/c and radiator fan then remove the belt make sure to remember how it runs then remove the four bolts on the a/c compressor and it will be a little tight but it will pull right out the top. Make sure to not leave your a/c system open for more then a hour or so because if you do you will need to get a vacuum pulled on it to remove the moisture. to reinstall to everything in reverse and then recharge it.