I know the 5.4L is risky business, how is this on a 4.6L?

May be doing these tomorrow...

 

I'm with you man. I need to change mine out.

I'm fairly sure there isn't a problem on the new body style 4.6l (ie. no breaking issues, no plug spitting). But I'm a rookie at plug changes so I'm not even to sure where to start.

If anyone's done it could you list the tools required and any tips to help out?

 

I should have done a write up, but here are some spark notes from mine...

-No issues with breaking them, us 4.6L owners were lucky enough to avoid that

-As far as tools go, get as many extensions and u-joints as you can together to get the rear ones

-you need to remove a bracket that goes from the power steering reservoir to the block to access the first driver side plug

-Most of the COPs will come off without a problem, but on occasion you will pull it out and leave the rubber boot still on the plug. You will have a spring looking gizmo coming off the top of the COP. Just pull the boot out with some needle nose pliers, then put it back on the COP. No damage, no problems

-Unplug the fuel injector harness, it makes it easier to get to the COPs

-You don't need to remove the fuel rail to get to the rear COPs and plugs, but if you're feeling ambitious, it would make life really easy

-Remove the intake and throttle body, that way you can clean out the throttle body and plenum while you have it off, and have easier access to the plugs

-Only use Motorcraft plugs

-Don't forget to gap your plugs

-If something is in your way, just unplug it (unless its full of some sort of fluid )

-Label everything you unplug so you remember where everything goes. I took a roll of duct tape and a sharpie and labeled the connector and the connection with the same number so I could match them all back up in the end

It's not a terribly difficult job. Just take your time. On occasion you will need to bend you arm in ways that it was never meant for.

Good luck! If I remember any else I'll be sure to Add it in, any questions feel free to PM me

 

Disposable:
1. Anti-seize
2. Dialetric grease
3. 8 spark plugs

Tools:
1. Spark plug gap setting tool thing
2. Ratchet set w/ spark plug socket

Step one, remove/loosen fuel rail (you can remove other **** to).

Step two, remove coil packs.

Step 3, loosen and remove old spark plugs

Step 4, on new plugs, apply grease to the threads, dialectric to the other end; gap them.

Step 5, insert new spark plug (finger tight, then ratchet in until snug)

Step 6, re-assemble

I did this on my buddies Silverado today, went great. We should be doing my truck tomorrow, a little trickier then the Silverado but I'm not to worried, so long as they won't be breaking on me.

Spark plug change is pretty easy, so long as they don't break in half as they commonly do in these Triton engines. I think only the 5.4 are prone to this. If you have a 4.6L no matter what year you're in the clear, just confirming this before I take this on tomorrow. Expect full DIY w/ pictures once I'm done.

 

What gap use for the plugs?

 

Hi & welcome!

Which year & engine?

MGD

 

First post says 2006, 4.6.

 

Yep.

But - that does not guarantee this new feller's engine is the same, hence the reason I asked.

However, OP, here y'all go: 0.054 for either Motorcraft plug ( SP413 or SP493 ) For 2006 4.6L 2V.

==> http://www.rockauto.com/catalog/rafr...&parttype=7212

good luck
MGD

 

You are correct, I totally missed that it was an old thread revived. I should have known you knew what you were doing.

 

^^^ Still got ye fooled, eh?

No worries, Jim. Thanks fer the help.


MGD

 

Its a F150 2007 4.6

 

Thank you!!