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02-20-2010
Ok, so today my car out of nowhere decides to start idiling between 600-1000 with almost a miss and a slight knock. In the video you can't hear the knock but it sounds like it's coming from the lifter valley area. What is this??
YouTube - more problems
02-20-2010
the idle could be vacuum or a maf issue
couldnt really hear the knock though
is it throwing a mil light
02-20-2010
I know, the knock didn't show up in the video. Yes the check ses light came on after all this happened. I don't have a scanner but i'm going to take it to a buddy on monday and get him to pull the codes.
02-21-2010
my guess will be a missfire code could be coilpacks icm or something along those lines
02-21-2010
You got it!! It was a P0305 and i pulled the plug out and it was all bent to hell... What would cause that??
02-21-2010
Chipped piston.
02-21-2010
I love my life... It runs fine though??
02-21-2010
Sure...I ran mine on 5 pistons with the wrist pin beating the snot out of the head. Doesn't mean something is internally wrong...it is common sense though, think about it. The head of the spark plug is INSIDE the combustion chamber, how else would it get bent...unless there is something foreign flying around in there to cause the damage.
02-21-2010
Well, i have a little rigid snake camera that we use to check ducts at work, that will fit in the spark plug hole. I will take a look at it tomorrow. Is it safe to run it like that. I mean like it sounds like it did before all this happened?
02-21-2010
x2 on chipped piston you running premium fuel right
02-21-2010
yuppers never saw anything but 91+
02-21-2010
Probably not a good enough, knock free tune.
02-21-2010
Oh well guess i got 2 vehicles to build up now, at least this one is a lot cheaper...
02-22-2010
So here is what i found.
Looks destroyed to me. I was having an argument at work, what exactly causes this? I know about mods and kr but like the definition for it.
02-22-2010
early detonation... been there done that... i drove mine for awhile with a chipped piston and it ran fine... finally shattered a piston due to me being an idiot doing a WOT run passing someone. cheapest fix is used shortblock... or complete engine swap. basically too much knock retard.
Originally Posted by SuperSport
02-22-2010
keep driving it hard and this will happen
Originally Posted by SuperSport
02-22-2010
sounds like my car. Lol just not as loud as yours yet.
02-22-2010
replace the plug and u might lose some of the knocking sound. check the whole front bank for bent plugs
Originally Posted by SuperSport
02-22-2010
Ill do that, the motor is getting totally rebuilt and cammed anyways.
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