changing spark plugs

[lawmanbsi]

I think one of my spark plugs has gone bad. Some helpful tips on getting them all out looks pretty tight in their.

[MunsterZ28]

lol not really, make sure the car isnt hot and shove ur hand in there. its a PITA on our cars.

[Kwazrollinz28]

lol not really, make sure the car isnt hot and shove ur hand in there. its a PITA on our cars.

let me rephrase that, its a ***** on an LT1 with exhaust manifolds, LS1's are not that bad at all

[OIF1VET]

Drivers side fairly simple, passenger a *****... Some people pull their coil packs off for more room. Just lay down on the motor and shove your hand back there, I thought it was impossible but with a little patience you can do em.. You just have to learn your own tricks..

[DETROITMUSCLE]

Larry said it, take off the coil packs (at least the passenger side) it take 2 minutes and gives you more room. Then get up into the engine bay if your smaller I like to put my knee on the battery and rest my other leg on the airbox assembly. Lean forward and reach your left hand to the back of the motor and you'll be able to get them out.

[lawmanbsi]

I think it the plug. I'm not getting any engine codes/lights

[BP_Z28]

Yea just unbolt the 4 coil packs bolts, and loosen the 5th one (im pretty sure there are 5), and shift it up to give you room. I also removed part of the AIR on the passenger side to give me a little more access. This past summer was the first spark plug change on the 00 and it was a PITA, my boots and plugs were stuck in there pretty good haha.

[prorac1]

Spark plugs on an F body are enough to make anybody want headers. I can change all my plugs in a matter of minutes now. Headers FTW, lol. To be honest, that was one of the reasons I put the headers on back in 2002. I had the tranny out and needed to do a tune up. Eric L

[ezcruisn71]

If your Engine has Aluminum Heads it is a good idea to apply a very thin coat of anti-seize compound on the threads of the Spark plug before you install them. Be sure to wipe off any excess anti-seize compound.
It is not uncommon for dissimilar metals to cold weld without proper precautions.
Think of this as cheap insurance against costly head work down the road.

[Lucky SOB]

If your Engine has Aluminum Heads it is a good idea to apply a very thin coat of anti-seize compound on the threads of the Spark plug before you install them. Be sure to wipe off any excess anti-seize compound.
It is not uncommon for dissimilar metals to cold weld without proper precautions.
Think of this as cheap insurance against costly head work down the road.

Is this only for aluminum heads? I've put anti-seize on every spark plug I've installed unaware of the aluminum head stipulation. Anyone know if the heads on a vortec 4.3 are aluminum?

[ezcruisn71]

I wont hurt to use the anti-seize on cast iron heads as well.
It is a real good idea to use it on Aluminum heads.

[Dummybait]

Is this only for aluminum heads? I've put anti-seize on every spark plug I've installed unaware of the aluminum head stipulation. Anyone know if the heads on a vortec 4.3 are aluminum?

4.3 heads are cast iron..

[Dummybait]

I wont hurt to use the anti-seize on cast iron heads as well.
It is a real good idea to use it on Aluminum heads.

Good advice!!! I've always used the stuff... the idea of fastening one type of metal with no barrier into another scares me... there's nothing like pulling plugs out.. to find that the threads from the head came with it!!!

[Gaspo]

i've never taken off coil packs.. sometimes its easier to jack up the front end of the car and go from underneath for the #7 cyl. just my 2 cents

[OIF1VET]

i've never taken off coil packs.. sometimes its easier to jack up the front end of the car and go from underneath for the #7 cyl. just my 2 cents

What kind of headers? I have SLP and I can't even see the back to plugs, from underneath... My coil packs are relocated, so it's not to bad doing them(plugs)... Always seem to end up cut before it's all said and done though..