Have a questiom
 

I need to know how to change the side motor mount on a 1994 buick park avenue 3.8 motor.If you guys could walk me though it that would be great.

Which side?

Its on the left side under one of the ac lines.

It would be more helpful if you said , passenger or driver's side.

It is passenger side.

What kind of equipment do you have to work with?
If you place a jack under the engine just so that it contacts the oil pan at the bolted area on the passenger side. You may need to use a block of wood to prevent damage to the oil pan. All you need to do is take the weight off the mount and then you can remove it. It is extremely important to place the lifting device in a good location so you don't cave in the oil pan. When you can see the engine rise a little and you can remove the bolt that goes through the mount, there is no need to go any higher.
Change what you plan to change and assemble in the reverse order. It's that easy.