How to replace Spark Plugs

[Netjive8]

Would anyone mind giving me a brief description of how to replace the spark plugs on a 2008 Avalon? I would very much appreciate it. Also, are the OEM plugs (Denso) the right way to go? Thanks in advance.

[sr20det]

you need to remove the upper intake manifold to replace the rear 3, that is why Toyota used iridium plugs with a 100k service interval.

[Tom in Tacoma]

I hate to answer a question with a question but why are you replacing spark plugs on a 2008 model? Surely you haven't hit 100k miles already!

...this is a case of 'If it ain't broke - don't fix it."

[Netjive8]

Thanks for the replies. Actually the car has over 140k miles (I do a lot of driving), and it still has the original plugs. I'll try looking under the intake manifold for the rear 3. Thanks.

[Tom in Tacoma]

Originally Posted by Netjive8

Thanks for the replies. Actually the car has over 140k miles (I do a lot of driving), and it still has the original plugs. I'll try looking under the intake manifold for the rear 3. Thanks.

Whoa - and I thought I drove a lot (75k on an '07).

Here's your crown!

[bear1906]

I thought the spark plugs needed to be done at 120K, not 100K?