the motor is in a 98 malibu. but your motor in a monte as long as its a 3.1 should be the same.

disconnect negative battery cable. remove air cleaner assembly.remove altenater bracket and alt.three bolts through power steering pulley.remove egr from tube.
coil packs and upper intake. drain coolant.remove coolant tube from lower intake.remove valve covers.removerocker arms and push rods. pay attention to push rods;they are different lengths.remove lower intake.remove gaskets,clean and replace.replace p.c.v.also.