Questioni need to replace the a/c compressor any tips on how to make this make this a smooth operation.
AnswerHi Roch,
The act of replacing a compressor is about as straight-forward as it gets. Depending on the motor, it should be just removing the drive belt (serpentine or V), unbolting the manifold (combination hose), and then the mounting hardware.
As for the rest of the job,
-Perform the PROPER Recovery, Evacuate, and Recharge, or have a certified shop do so.
-*Always* replace the orifice tube (or expansion valve) -- especially if there was a catastrophic failure.
-Likewise, if the system has been open for a while, or in high humidity, the accumulator should be replaced as well.
-*Always read the shipping label*; make sure that the amount of oil in the old compressor is the same amount in the new -- and ONLY use PAG oil. The label will have the pertinent information.
-If you lubricate Orings or seals... do not use PAG oil, unless the seal is in refrigerant flow (like the orifice). PAG has a tendency to seize O-rings, and doesn't mix well with HNBR/neoprene.
-Inspect the system for metal and other foreign materials -- it saves doing the job again.
-Unless the system already has it, now is the time to add an ounce or two of R-134a tracer dye
There's about a dozen more things flying through my head, but this should be good for now. Good luck!
