How to Repair Automotive A/C

Step 3 Compressor

If your compressor is leaking freon from the central o-ring seal or making clicking noises then its probably time to replace it. The replacement is straight forward, I didn't find any surprises when I replaced mine. One thing to keep in mind is to add oil to the suction side and rotate the clutch 15 to 20 times to make sure the oil clears. Also when installing the compressor be sure to tighten the four bolts evenly in a circular pattern to prevent the compressor case from being deformed. And when installing new seals for the freon pipe be sure to rub a little bit of oil on them. Below are pictures of an my oil compressor.

If you are returning you compressor to be refurbished be sure to wrap the oily compressor in some newspapers so the box can be reused. This not only keeps the price down, but also creates less paper wastes.