I need to change my spark plugs, but I cannot figure out how to get to the plugs on the back side of the engine (1,2,3). I think I figured out how to get to the front side (4,5,6)

It is a 99 SE sport. with 2.5 liter V6.

any help is appreciated.

take off the UIM and see if that doesnt help.

When I changed mine I removed the coilpack and that's all. Never had to remove the UIM.

Don't forget to re-attach the ground lugs when you re-install the coilpack.