Cylinder knocking

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Jun 25, 2008 | 07:42 PM

Storm

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Joined: Feb 2008

Posts: 34

Cylinder knocking

So when I touch my spark plug cap for my 3rd cylinder I can feel it knocking. I replaced the spark plug recently, is it already messed up? Or what.

Jun 25, 2008 | 07:59 PM

dsm1990gsx

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Joined: Oct 2007

Posts: 4,682

From: Pa

RE: Cylinder knocking

Do any of the other cylinders do it???

Jun 25, 2008 | 08:20 PM

Storm

Thread Starter

Joined: Feb 2008

Posts: 34

RE: Cylinder knocking

Just cylinder 3 is the one that's knocking.

Jun 25, 2008 | 08:38 PM

dsm1990gsx

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Joined: Oct 2007

Posts: 4,682

From: Pa

RE: Cylinder knocking

Does the noise go away when you dissable that cylinder.

Jun 25, 2008 | 09:05 PM

Storm

Thread Starter

Joined: Feb 2008

Posts: 34

RE: Cylinder knocking

One more thing, my cel is on and I used and obd2 and it said cylinder 2 is misfiring, what else could it be beside the spark plugs? The wires or what?

Jun 25, 2008 | 09:09 PM

dsm1990gsx

Super Moderator

Joined: Oct 2007

Posts: 4,682

From: Pa

RE: Cylinder knocking

So u have a missfire, there are a couple of things that can cause that, a bad injector, bad plug wire or a bad cylinder. Do u have spark on cylinder 2?

Jun 25, 2008 | 09:46 PM

Storm

Thread Starter

Joined: Feb 2008

Posts: 34

RE: Cylinder knocking

Sylinder 2 is misfiring while cylinder 3 I feel the knocking, I check for a spark in a dark place and rev my engne, right? and that would be caused by the wires? Since I have brand new ngk iridiums in my car