I changed the first 3 but the ones in back i cant get to .
How do i get to them ?

 

if it's the 1mz-fe motor, which i assume it is on a 05 camry(solara) v6, you have to remove the intake manifold to access the rear 3 plugs. it's a pain in the butt. the worst part is the two supports on the back of the intake that are meant to hold it up. they are nearly impossible to get a wrench to.