Difficulty in replacing a/c compressor?

1998 trans sport montana 3.4. a/c compressor started making a terrible clicking noise and it no longer produces cold air. i haven't had much time to look into it, but it seems to click whether the a/c button is pressed or not, even when trying to run the heat. i'm no mechanic, but have done my share of repairs in the past. is the compressor on this anything to mess with? thanks in advance.

nah no big deal changin that one. but get a manual for that vehicle and it will lay it all out for you.

it could just be the clutch, there is a tsb #01-01-38-013a u can look it up on the internet or ask ur local dealer for a copy.

If the comp. needs replacing, You'll also need to replace the dryer. After you get it all replaced you'll then need to have a vacuum pulled on the system. Then you can have it refilled.