Changing spark plugs in 2005 Tundra V8...advice needed

[sixdogs]

What kind of trouble can I get into while changing the spark plugs in my 2005 Toyota Tundra 4.7 V8. My experience is limited to conventional engines and conventional plugs. This engine is aluminum and what appears to be a coil(?) over each plug.

My plan is to get the engine hot, carefully extricate the plugs, slather some anti-seize on the plug threads and torque back in. Simple enough but could the plugs be stuck? is anti-seize the right thing? What other problems can I have?

Any advice appreciated since the OE NGK IR plugs should be here on Thursday. Thanks.

 

[charlz]

I did mine on my 2003 Sequoia with the same engine about a year ago. It is pretty straight forward and quick. The coil on each plug actually makes it easier than plug wires I think. IIRC the plugs are pretty far down in there so you need a long extension and maybe a selection of shorter ones so you can work around other stuff under the hood. The biggest problem I had was when the rubber boot from my plug socket stayed on a spark plug waaay down in there and I had to get it back out. My existing plugs did not have anti-seize on them and I did not put any on the new ones.

 

[kenmac]

I a 2007 tundra with the 5.7 engine. I don't have enough miles on the motor to change out the plugs ,but it looks pretty straight forward.. unbolt the coil pack and remove the plug...I would apply anti seize to the threads. Always good to put some type of lube when dissimilar metals are involved

 

[jaotguy]

NOPE ... just make sure the plugs you put in, have the anodized coating ( NGK , etc )

DO NOT use Champion plugs ( steel plug to alum is a NO NO ... even with anti seize )

also , use a 12" length of fuel/ windshield washer line slipped over the plug tip ... use it to start the plugs , so you can't cross thread them ...

 

[Coyote machine]

DON'T remove the plugs when the engine is HOT. Remove them when it's cold. Copper based anti-seize is what I always used in my foreign auto shop, made by Wurth, a German company.

 

[sixdogs]

thank you all...excellent advice. I'm using NGK Iridium plugs so I should change the plugs when the engine is cold. Got it.
And I understand the piece of tubing thing.

 

[Coyote machine]

What mileage is the truck at? Those plugs are good for 30K miles, IIRC.

 

[kenmac]

What mileage is the truck at? Those plugs are good for 30K miles, IIRC.

I was told those plugs were good for 80-100 k in my toyota

 

[Mace Canute]

DON'T remove the plugs when the engine is HOT. Remove then when it's cold. Copper based anti-seize is what I always used in my foreign auto shop, made by Wurth, a German company.

x 2! :thumbsup:

 

[Coyote machine]

I was told those plugs were good for 80-100 k in my toyota

Was that when the Tooth Fairy took your last $1.00?!

Here's the link which shows which plug goes the 80-100K:
http://www.ngksparkplugs.com/pdf/DYK_LaserIridium_vs_Iridium IX.pdf