I just had the alternator replaced on my 1998 AV6 (133,000 miles) yesterday. Now, the a/c comes on but does not blow out cold air even when turned down to the coldest setting (60). I also can't "hear" it start up when i turn it on. I know nothing about cars but I assume they had to disconnect the battery at some point yesterday. Could that have done anything to make the a/c not cool now?

 

Your AC compressor runs off the same belt that the alternator does. Make sure that the belt is still wrapped around the compressor. This is why I don't let others that I don't trust touch my car...magic stuff happens.

 

I would check fuse first since you was working on electrical system but usually A/c doesn't work if there is not enough freon.

 

I am pretty sure it the freon i had my alternator replaced to like 2 years, came up on the same problem, went and got freon and that did the trick :joshers:

 

Make sure the compressor is plugged in. If it was done right the fan on the passenger side needs to be removed to get the altenator out so im sure all the connectors were unplugged to do so. just double check. Its a single red wire all the way @ the bottum of the shroud

 

The low pressure line for the A/C system runs right over top of the alternator on the V6 model, and the alternator is removed from the top. If they nicked the line and caused a slow leak the low pressure cutout switch would keep the compressor from enagaging and destroying itself. That would explain the lack of cool air and the fact that the clutch on the compressor isn't engaging.