SCV6 spark plugs

[greiswig]

Any time I have a vehicle that's new to me, I like to think I can maintain it on my own. At least the basics, like changing spark plugs. My ex had a Subaru Outback where you had to really contort yourself to access the plugs.

I'm looking into this 2016 engine bay and I'm not even sure what to start removing to be able to see the ignition coils and plugs! Everything is buried. The manual I was able to get online seems to talk only about the V8 and the diesel engines. Same with YouTube vids: V8 is what I was able to find.

Anyone have any tips? It's only got 47k on it, and is running fine, but...peace of mind.

PS - if I made a version of the PDF manual that deleted the pages with the V8 and diesel-specific pages, would that be of help to anyone?

 

[DaytonaRS7]

procedure for changing plugs should be the same on v6 and v8...its the same engine (with 2 cyl plugged and a SC on top)

IIRC, spark plugs were a little annoying. I did it without a manual though.
partially dis-assemble the boxes on the right and left rear of the engine bay. I did not remove the battery.
Use an assortment of extensions.
The rear 2 cylinders on the V8 were the worst, which you shouldn't be dealing with

I think i spent 2+ hours, and had a good amount of cuts on my hand.

 

[greiswig]

LOL...good to know. I figured about the cuts on my hands. That was my experience with my Chevy Astro and with that Subaru as well.

Also good to hear that the V6 is the same basic engine as the V8. Thank you!

 

[ktm525]

Plugs should be fine for 100k miles at least so you have some time.

 

[Michael Gain]

Agree with @ktm525. You have time before replacement. If you want to just explore, you can remove the insulators (rubbery covers over the valve covers) and examine the coils.

 

[f1racer328]

I'm at 90k and have no plans on replacing plugs until I need to. My uncle has a vehicle with 200k+ miles on the original plugs and no issues.

Now, my dads F150 EcoBoost eats through plugs every 60k miles or so, which gets annoying.

 

[ktm525]

Don't leave them too long or they tend to "weld" into the head. At 100k the tips were ok but they were worn and some threads were corroded. One plug was oddly rusted.

 

[f1racer328]

Don't leave them too long or they tend to "weld" into the head. At 100k the tips were ok but they were worn and some threads were corroded. One plug was oddly rusted.

View attachment 12729 View attachment 12730

Hmm good point.

 

[ryanjl]

I changed mine around 100k miles and they looked fine.

https://www.landroverworld.org/posts/221787/

 

[timc930]

I've got 107K on our 2015, and need to do this, just been putting it off. Truck runs fine, just don't want to risk difficult removal. Out of all my cars, I dread working on this one most...