My mechanic has determined that my compressor is leaking coolant. We tried a fill-up, but within 2 weeks it had all leaked out again. My questions are: will leaving the system empty for a few months damage any other components other that the compressor? I want to take my time fixing this, but don't want to cause further problems by neglecting it. Also, is replacing the compressor a DIY job? I know I could handle the nuts and bolts swap, but recharging the system with the proper amount of oil and coolant? Thanks for any advice.

 

In any HVAC system (vehicle, home, or office), you do not want the interior seals and gaskets exposed to outside air any longer than they have to be. They dry out, warp, and create even more leakage potential. If it were my compressor, I would go ahead and repair it now. HVAC systems remain healthier and more trouble-free if they are allowed to operate full-time. You do not want to give yours an extended downtime of several months....

 

I'm sure you meant that your A/C system is leaking refrigerant. If it's leaking coolant, you have bigger problems.

I was taught that refrigerant oil is hydroscopic. It likes to attract moisture. This could break down into corrosive substances. If you have a gaping hole in your a/c system, it will pull moisture from the air. If you have a very small leak, It's less likely to be a problem in the short term.

If you're sure it's the compressor, proceed with your repairs. If not, pinpoint the leak with U/V leak detection dye and or a leak detector. I often see (not specifically on Jags) o-rings leaking. Much cheaper than a compressor. And some compressors (not Jag specific) have seals and o-rings that are relatively easy to service.

If you trust your mechanic, that's good enough for me.

Good luck.

 

If the system takes 2 weeks to leak then it is small so it should not contaminate the receiver/drier or the PAG oil in a few months. You might put a small amount of refrigerant in the system every once-in-a-while to keep the air and moisture out to prevent contamination until you can repair the faulty component.

Make sure you have at least a small amount of positive pressure in the system.

Like jchavez76 stated, a UV dye can be added to determine the point of leakage so you don't start replacing unnecessary system parts.

bob gauff

 

Going back to have the dye checked next week, and get a definitive answer on where the leak is. Then go from there. Thanks for your input. I take it the compressor is best replaced by the shop so they can charge the system properly? The JTIS descripton is a little daunting.