How do you change spark plugs on a 2006 Toyota highlander hybrid limited?

Answer 1

1. remove the front air filter assembly. you can access the first 3 spark plugs

2. Now the kicker, to get to the other 3 you have to ask yourself do you have the time. if not have the dealer do it for you.

3. okay so you have the time, you need to remove the following:

a. Remove all hybrid covers to the right of the engine

b. Completely remove the Air Filter Assembly

c. Remove the strut tower bar (once you remove the bolts to the strut tower, you need to loosen but not remove the bolt to the left strut tower. jack-up one side of the car and remove the strut tower)

d. behind the intake manifold are 3 bolts. 1 to the right, 1 hidden behind the manifold next to the throttle body and 1 on the body itself, you need to remove these before the intake manifold will come out

e. clamp off any hoses before you remove them from the throttle body.

f. loosen the hex bolts and nuts that hold the intake manifold down and remove the intake manifold

g. make sure you you replace the O-ring gasket to the intake manifold.

You now have access to the last 3 spark plugs. Just follow the instructions in reverse for reassembly