How to Change Spark Plugs on a 3.5 Engine (2nd Gen)

[Yamsi]

http://theswampbbs.com/300m/plugchange/default.html

[Hypnotiq]

I know this thread is old but id just like to thank you for posting this cuz w/o this i don't think i would have been able to change my plugs myself.. Again thanks!

[I275westcoastflorida]

Ah should be useful for me as this is something I have to do soon.

[Hypnotiq]

Ah should be useful for me as this is something I have to do soon.

It took me exactly 35mins. :sifone:

[DrDodge]

last year at Forest city,, i think Scott and I did them on sheris car in about 12 mins,,

[SilverSpecial6.1]

I have it down to about 15 minutes! took longer on the Intrepid tho :( some of the torx bolts needed to be drilled out

[joekd]

I changed them all on the Intrepid on my lunch hour before and still had time to grab a bite to eat

[Chief Brody]

I'm dissapointed to see that neither anti-seize was not used on the threads nor dielectric grease on the coil boot.

[Dodgaholic]

I'm dissapointed to see that neither anti-seize was not used on the threads nor dielectric grease on the coil boot.

Absolutely...

[LUISA]

I'm dissapointed to see that neither anti-seize was not used on the threads nor dielectric grease on the coil boot.

I sure did use them, alos!, ;) Also you need to check, I repeat Check (and recheck the spark plug gaps before install) they might have been dropped during inventory, or transportation as well, ect... !.

:grouphug:

[Chief Brody]

I sure did use them, alos!, ;) Also you need to check, I repeat Check (and recheck the spark plug gaps before install) they might have been dropped during inventory, or transportation as well, ect... !.

:grouphug:

This is true, but I can't call anyone out on this one since the Bosch +4's can't be gapped in the field.

[LUISA]

This is true, but I can't call anyone out on this one since the Bosch +4's can't be gapped in the field.
yes that is true, but (Verify) that they are all (4) splits are evenly flush all aroundm the champion platinums, and copper plugs, are single gapped plugs, and are O.E.M. depending on model/year!, ;) :smartass:

[shadowvox6]

Can't gap the E3 DiamondFIRE plugs either.
FWIW, I installed them Monday night...and so far, so good.
Mileage on the way out with a full load of people and cargo was just under 24 mpg.

[Aquinox]

Was there any performance/efficiency difference? I heard these engines are iffy when using anything other than stock plugs but I'd love to have these ones in there.

[shadowvox6]

The plug design (in regards to the electrode end) is the same length as the NGK plugs.
The end that interfaces the coil is a bit shorter, but you can successfully compensate for that by unscrewing the tip, and using Threadlock to secure the tip at the appropriate length. Works like a champ.

I suspect that the misfires that Scar experienced was due to the tip not being at the correct depth, and the coils weren't contacting the plug with any regularity.