todd2183

anything special to know to change spark plugs in a 2002 ls430

tcr101

iTrader: (2)

I've done it on my 01, wasn't too bad. Just have to have an extension long enough to get the socket to the plugs.

jimbosr1

make shore you have a swivel for you ratchet.

JohnLS430

Any other suggestions?

Slvr surfr

iTrader: (1)

I had to move the oil dip stick out of the way just a little bit. There's a bolt and bracket that holds it in place. Other than that, just swivels and extensions is all you need. Oh! and maybe a magnet if you don't have the spark plug socket.

JohnLS430

Thanks, just pulled the covers off, seems faily simple.....but the plugs are original, they have 157,000 mile on them, probably my hesitation issue.....:>)

dfkd

Battery may be an issue on the rearmost plug on the right.

I had to release the battery clamp and push the battery as far right as possible to be able to get in without actually removing the battery.

cincin

Took me 2 hours, i have never done this before.
I had to remove the plastic on the pass side ofbthe engine and lift up the air duct thing
I found nkg plug and replaced with denso

warminwisc

I really have to do my 04. What is OEM Nippon Denso or NGK? Nippon Denso correct?

toyo

ND is standard. When you remove the spark plugs it's best to do so when the engine is warm, not cold and not too hot. Less chance of any plug to thread failure. Apply some die-electric grease to the shank of the COP before you re-install it. Helps keep moisture at bay.

warminwisc

Thank you very much

LionsGate

Might want a look at this, especially the second and third paragraph. I happened to catch Pat doing this bit on his show recently and thought how things have changed. Back in my time you just slapped the dino on the *** and it went where pointed.

http://www.motorweek.org/features/go...k_plug_removal

jimbosr1

nippon denso parted ways years ago.its ngk or denso.

toyo

Yep, some habits are hard to forget. However, I believe he got my point.

warminwisc

Yup that was a good tip...Iridium tip