Toyota car and truck forums

Hi All,

I've searched and searched for the answer to this and cant find it anywhere, not even in the official service manual. How does one change the back six plugs on the Highlander? Any suggestions will be appreciated or links to where it is explained.

joeyga

The rear plugs can be painful to get to. The right way to do it is to remove the intake manifold and number of brackets/nuts bolts, etc. to make enough room to get to the plugs. There is a reason why they use the long life plugs. Note that this is not unique to the Highlander, a number of other manufactures with V6 or V8 engines also have hard to reach rear plugs - some require removing the engine to get to the plugs!