1994 Suburban AC does not blow cold air.

What is your question?

The AC in our suburban does not blow cold air. We are on our 4th air compressor since February. The front vents blow cool (not cold) air and the rear vents blow warm air. Any ideas as to why the air isn't cold and/or why the air compressors keep tearing up. Luckily the last 3 compressors have been fixed under warranty but it is quite aggravating to keep taking it back to the repair shop.

What makes this problem better or worse?

Nothing

How long has your 1994 GMC C2500 Suburban had this problem?

February 2018