so last night my car ***** the bed i threw a cel for a misfire so as im changeing the plugs one of them is bent and looks smashed up i have no clue what would cause this any help would be great the whole car is vibrateing and putting has any one went through this b4 the car is a 07 ls now i changed the plugs and it idles fine but i tryed to drive away and it started vibrating and when i gave it gas it stalled out i should probably mention that the past 2 weeks i have been getting a cel for running to rich
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take it back to the dealer, warentee man.

 

tryed to when my tranny went and they wont touch it

 

Got pics of the bent plugs?

 

im gonna post it up later it was only one of them idk what the cylinder number is but if you stand in front of the car its the second one from the left

 

i think thats number 3...
and why wont they touch it? whats done to the car?

 

when i took it to them i only had a lsj downpipe and catback now i have a cai, ca header, and a zex wet kit with a 75 shot

 

Smashed plug = either detonation or the piston hit the plug. It is uncommon for a plug to just "break".

What do you have done to the car? What were you doing when the CEL came on? What type of plug? Is the bad plug black or white or another color? Does it look like any pieces of the plug are missing?

Chances are whichever cylinder the problem occured in is toast.

 

the plug is pushed up does not look like any part of it broke all 4 plugs were black and there the stock ones i was sitting in the car in a parking lot at idle when it happened just started vibrating then i tryed to drive home cel came on and stalled out

 

thats what i was thinking when he said the plug was bent

 

I'd like to see a picture of the plug, sounds like the piston hit the plug though. What plugs were you using? It is strange for something like this to have happened at idle.

 

thats what im saying i dont think the plug bent at idle though it started vibrating really hard and i had no way to get home so i tryed to drive it thats when the plug bent i think and i had the stock plugs in the ac delco ones

 

Hmmm... sounds like you may have lost compression or the plug fouled 2 weeks ago. I would do a compression test on the cylinders and see if they are still holding compression. If #3 has lost compression it is time to do a rebuild. If all the cylinders, especially #3, are still holding compression you maybe lucky and if the plug was actually fouled 2 weeks ago you may have just ruined the CAT.

Are you running any mods? NO2? CAI? A CAI can cause a too rich code, especially if there is a leak after the MAF. If you are running NO2 or a SC or turbo you should probably be running a colder plug then the stockers.

 

got pics

 

see above............

 

I totally missed where the mods were listed... sorry... lol.

Is the black on the plug oily or powdery?

It looks like you are running WAYYYYYY rich or you are leaking ALOT of oil into that cylinder. Judging by the damage to the plug, you definately need to do a compression test and pull the head off. I don't think the piston hit the plug, but it looks like something may have been loose in the combustion chamber. You may have chipped a piston or it maybe the rings... hard to really tell without taking a look inside. I can't tell much else because the plug is fouled too badly, but it looks like the plug might have been too hot as well.

You have two options.

1. Remove the NO2 system, remove the CAI and put at least the stock header or LSJ header back on. Then, take the car to the dealer and try and get them to check it and fix it under warranty.

2. Tear the engine apart or take it to a shop and have them tear it down and check it out. More than likely you are looking at having to do a rebuild, at least on that one cylinder.

 

damn good luck with everything man...are you still going to be coming out on sunday with the other car?

 

when i put the 1 stage colder plugs in my car the plug threads were shorter then the stock ones... maybe you only need a stage colder plug?

 

Were you on the juice when it went?

 

She said that it was at idle when it happened... I am thinking that there must have been damage, possibly from detonation, and it just finally gave out.

 

im deffanetly a he my gf took the pics lmao i told her that someone would think i was a girl the plug had a powdery black on it my guess is its carbon all of them were like that i am going to do a compression test tomorrow now that i changed the plugs the car idles fine but when i tryed to drive home i got a block down the road and it died out it sounds like a wrx right b4 it dies out

 

Ahh... LOL

If it sounds like a WRX chances are there is damage somewhere. Either pistons, rings or maybe a valve.

If it is sooty black then you are definately running WAY rich. It is normal to have a little carbon around the edges, but not that much.

 

yeah man i hate to say it but youre pistons shot

 

well i think its time for a rebuild i just pulled the new plug out and its smashed like the old one im gonna try to take it to the dealer and see what they say

 

good luck bud...letme know if u need to sell the juice for some money if they dont warantee it