i have a 2000 3.8 liter v6 and i was wondering if anyone can tell me how to replace an intake manifold gasket?

 

I suggest you invest in a Hayne's or Chilton's manual. It's probably a little more involved than you might think.

 

instead of getting one of those manuals, would a gm service maual work? Am i going to have to pull the engine to replace the gasket?

 

You wont have to pull the engine, its more than possible with the engine inside the car but you will need a manual to do it. Unless you are extremely mechanically inclined, and dont forget to mark which lines go where on the manifold.