2010 Prius Spark Plug Change

Uh oh. Ever cleaned your EGR cooler and intake manifold? How many miles on the car?

 

How long of a socket extension did you use? I have a lockable 6" extension that I want to use, but I don't know if it is long enough.

 

200K? You really need to bite the bullet and do the EGR / Intake manifold clean out.

NutzAboutBolts has done it all:

The EGR system is the weakest point on these cars. Ignore it and you'll have the fun of dumping the car or replacing the head gasket.

 

Where did 200K come from?

 

Grit, the OP mentioned it in his video.

 

I think you're good, but it's been a while. To be sure, pick up an additional 3". The latter's a very useful length, you'll need it for other applications.

If your spark plug socket has a rubber insert to grip the plug, tape the joints between extension(s) and socket. Particularly after torquing the new plug; there's a risk the socket will stay on the plug when you pull the extension out.