how do i change the ignition coils

disconnect negative terminal on battery first.well,it's not hard at all.1 bolt,and 1 electrical connector.disconnect electrical connector,remove bolt.twist and pull straight up on the coil,gently.they are on top of the spark plugs.but,i have to ask why you are changing them?toyota coils last a long------------time.you either have 3 or 6,don't know which engine you have.that's alot of $$$$$.

2.4 OR 3.3 engine??