How to change the rear spark plugs on Camry 2002 V6?
You have to remove the throttle body/air intake plenum to get to
the rear plugs. I believe the plenum is supported with two or three
stays which are hard to see. You will need a new gasket for the
plenum/intake manifold interface.One post on Toyota Nation Forum
says that it can be done without removing the plenum. I think he is
skilled at beating the clock at a repair shop.