5th Gen Spark Plugs- Photo Tutorial. So easy a 6 yr old girl can do it...

The manual lists 120,000 miles or 144 months (12 years), whichever comes first. They are iridium-tipped plugs.
 
That is cheating with those small hands..

How many miles did did you put on yours before the change. I feel they can go well over 100k without needing to be changed. 100k is when I start thinking about it. Not sure why, but toyota was still putting copper plugs in the tacoma up until the 3.5L.

Wondering the same thing...

I'm almost at 115,000 miles.

Our Honda Odyssey has 120,000 miles and last week it suddenly began running rough. One of the plugs actually cracked and the ceramic broke at the electrode. The ceramic was completely gone on one side of the plug- the engine apparently ate it!

Never seen that before but it prompted me to change mine sooner rather than later.

You can see that plug here, at the top of my workbench- it's all black around the bottom...

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I'm almost at 115,000 miles.

Our Honda Odyssey has 120,000 miles and last week it suddenly began running rough. One of the plugs actually cracked and the ceramic broke at the electrode. The ceramic was completely gone on one side of the plug- the engine apparently ate it!

Never seen that before but it prompted me to change mine sooner rather than later.

You can see that plug here, at the top of my workbench- it's all black around the bottom...

View attachment 206681

Another reason I don't like leaving plugs in too long.

The ecoboost f150 I use to own would crack and/or eat the porcelain off a plug every 15k. Twice it also caused the coil pack to fail as well. I also believe this was a contributing factor why it started knocking and had excessive blow-by at 45k.
 
Awesome post. Thanks for showing us how it's done, Gracie! We need smart and capable girls like you to show everyone that girls are more than just cute.
 
[MENTION=66316]1engineer[/MENTION] can we add this to the spark plug replacement thread in the maintenance sticky?
 
Coming from a 2004 Tundra where they recommended changing plugs every 30,000 miles (every plug came out looking like they could run another 30,000 miles). If I wait until 120,000 miles before changing I won't be the one changing them... I'm going to let the dealership do it.
 
120,000 miles before changing I won't be the one changing them... I'm going to let the dealership do it.

My '06 Avalon 2GR-FE engine calls for plug change at 120K as well. Waited until 162K to pull them. They looked damn near new. New set went in. I suspect that may be the last time I ever have to do that again.
 
My '06 Avalon 2GR-FE engine calls for plug change at 120K as well. Waited until 162K to pull them. They looked damn near new. New set went in. I suspect that may be the last time I ever have to do that again.

My luck is they'll be welded in there at 120k... I only drive this thing on weekends and trips so it only sees about 7000 miles a year, I may go ahead and replace them at 60k. I remember there wasn't any anti-seize on the original set I pulled out of the Tundra.
 
How Toyota mechanics could get this job done on a lifted 4R? They probably hire 6-year old cuties like yours, so they can stand on top of the engine!!!
 
LOL! Love that your daughter got in there and wrenched on the 4runner! And sorry to hear you're cursed with an odyssey like me too!

One question though, #2 plug looked a bit wet on the threads, you notice any oil in the hole by chance? Wondering if the cover's rubber seal is starting to leak a bit into the plug galley. Happened on the 1UZ I'm building, two of the holes were oily when I pulled the heads and inspected the galleys, the rest had either rust or some white corrosion (think the sleeves are aluminized steel, similar to exhaust pipe material).

Glad you're teachin' her about how engines work! My son is (sporadically!) helping with the 1UZ swap on the supra, at 12 years old, he's getting a good education on how everything works and goes together!


Assembly lube on the cams!
DSC_2092.jpg
 
LOL! Love that your daughter got in there and wrenched on the 4runner! And sorry to hear you're cursed with an odyssey like me too!

One question though, #2 plug looked a bit wet on the threads, you notice any oil in the hole by chance? Wondering if the cover's rubber seal is starting to leak a bit into the plug galley. Happened on the 1UZ I'm building, two of the holes were oily when I pulled the heads and inspected the galleys, the rest had either rust or some white corrosion (think the sleeves are aluminized steel, similar to exhaust pipe material).

Glad you're teachin' her about how engines work! My son is (sporadically!) helping with the 1UZ swap on the supra, at 12 years old, he's getting a good education on how everything works and goes together!


Assembly lube on the cams!
DSC_2092.jpg

Thanks Chris- Yup, it's really fun working with her in the garage and she loves it! We have to enjoy these moments while we can!

Seeing your son there reminds me of me when I was a kid helping my dad rebuild transmissions, carbs and the occasional engine rebuild (all in our basement, lol). My Dad called me a "gopher" because my job was to go for this tool and go for that part...I didn't graduate to an "equal partner" till I was about 16. Awesome memories.

That plug does look wet in the photo but they were all dry when I pulled them. Maybe it's just one of my epic photos...:spy:
 
best thread in a long time. get thee to the stickies!

thanks, [MENTION=65614]Antman[/MENTION]. nice work, Gracie!
 
And sorry to hear you're cursed with an odyssey like me too!

Time will cure this! I drove an Odyssey during the last eigth years, then I got my 4Runner TE... At last.

The Odyssey was great for family trips; we went from Montreal QC to Vancouver BC, then Los Angeles CA, and back. In total 17388 km in 31 days. The 4R would be a bit too small for this.
 
Added to stickies. Brings back memories of my now 24/yo daughter when she was doing helping me like that with me back in the day! She just refinished her dining room table (I had to help a bit on the stain and Polyurethane) over Memorial Day weekend. Teach them young and they will be ready for the world. Great job Jeff!
 
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