When I bought my 94 Z28 with ~85k miles, the dealer had just replaced parts of the A/C (drier and condensor, not sure about compressor). Over the next several years the car was trouble free except I had to replace the compressor and drier twice! I did it myself once, and paid a reputable shop to do it the next time just to make sure I wasn't screwing something up. As much as I liked that car and it ran great, I sold it mainly because keeping the air conditioner working (a must here in La) was costing me more than a built motor. When it worked, the A/C blew cold and hard, but I never figured out why that car went thru 3 AC systems in ~25k miles. As nostalgia is leading me to want another LT1 4th gen, I want to make sure history doesn't repeat itself. Any thoughts?

 

are you putting oil in those compressors? some come with no oil.

 

flush it out good, sounds like its either getting trash in it or has trash in it somewhere.

 

Evaporator or condensor may have been contaminated. Was the system flushed out?

 

Was the system flushed properly??? Main cause of most problems.... Was the expansion valve changed???

 

I'm no expert at AC systems but I've always heard when you start replacing parts you really should replace it all at once. I know at work whenever they replace the compressors on trucks they replace everything else. That way crap in the system won't trash new components.

 

Thanks for the replies. I admit I didn't flush the system when I did the work. But I would assume the shop did, especially since it was a guy there that advised me against replacing single parts.
I guess this was an isolated incident with that car, not something common on F-bodies, since I haven't heard of anyone else having similar problems. It's crazy how much money you can dump on the HVAC system. I really hate spending that much money and not getting faster or looking better.