I've never replaced the rubber o-rings. They've always been in good condition. I've simply re-oiled them every-time I have it off.

 

WOW! You weren't kidding about the rear bank spark plugs. They were a PITA. I got tons of torn knuckles and forearms. That rear bank spark plug closest to the driver was the toughest with the position of the harness connector and space available. Those harness connectors were very tough to unclip...and I even broke a couple. It's like Toyota decided to design everything that way to make it tough on the DIYs. I don't want to worry about this for another 100K miles. Sweenep...thanks. Your step by step really helped me navigate through the procedure. :|

 

Just a follow up question. Does it make sense to replace the plug wires at the same time as the spark plugs? I know the plugs are good for 120k (will replace them at 100k), how long are wires good for?

 

No distributor with spark plug wires. Nothing to replace, one benefit of having coil packs directly on the plugs.

I mean you can replace the 4 small wires going to each coil pack if you really want too, but its not going to get you anywhere :lol:

 

Yep these are coil over plug

 

You can tell I never open up my hood :wink:

 

^ So something for me to look forward to in the near future with that clip? Sounds like the same design as the 1GR-FE in the Tacoma. Not enough wire length to unclip that same spark plug, but at least the engine faces front and there's lot of elbow room while swearing at that clip. :lol:

 

Yeah...tons of swearing. I just felt some discomfort on both knees. I realized that I was bent over standing on a stool to reach the rear bank plugs. My knees were hitting the grill and whatnot. I hope the two clips I snapped won't rattle off due to vibration. Just in case I wrapped some electrical tape at the ends where the male and female ends meet. Good luck Moose. Get some beer...I needed it. :chug: