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Thread: Why would this happen?
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07-15-2009, 10:01 PM #1
Why would this happen?
Why would it crack this way?
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07-15-2009, 10:04 PM #2
Bad luck, vibration or manufactor defect
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07-16-2009, 04:09 PM #3
Missing the rubber in the socket, or binding it when tightening / loosening.
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07-16-2009, 05:33 PM #4
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07-16-2009, 06:32 PM #5
It might have been cracked before you got it. Brand new, it's hard to see it, until it gets dirty. Nothing your motor caused. That's the good thing !!!
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07-16-2009, 06:38 PM #6
- Join Date
- Jan 2009
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Phantom Black Metallic- 2004 GTO M6
May have been dropped at the parts store by an employee.
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07-16-2009, 06:48 PM #7
No no guys, cuz when I first put em on the car was running great! And then one day it started acting funny and messing up and stuff.. so I checked my plugs and that one was cracked on piston #4 so I replaced it and my baby was back to normal. And it hasn't done it again, that happened about 4 months ago but I barely got around to posting it, I know I slacked it.
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07-16-2009, 06:51 PM #8
- Join Date
- Jan 2009
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- North Jersey
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- 11,496
Phantom Black Metallic- 2004 GTO M6
Could have been a defect in the ceramic and maybe the heat caused the crack to spread?
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07-16-2009, 11:21 PM #9
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- Oct 2007
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- Beaver Dam KY
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- 7,745
79 T/A -91 Firebird- 1998 Trans Am -Oynx Black
Ceramic heat cycled and cracked. It does happen often. Its just a defect.
Probably was dropped and the heat cycles caused it to split.
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07-17-2009, 04:48 PM #10
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- Apr 2008
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- Madison, WI
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1999 Formula WS6 M6-sold- 2001 Silverado Z71
It may not even be a crack all the way through. It probablly carbon tracking. The spark jumps down the outside of the white insulator and etches a carbon track. Its caused by bad plug wires and other things. When ever you have a carbon tracked plug, you need to also change the plug wire on that cylinder because the wire will usually have a carbon track as well which will lead to the plug carbon tracking again.
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07-17-2009, 05:01 PM #11
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07-18-2009, 03:52 PM #12
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07-18-2009, 07:31 PM #13
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07-19-2009, 10:43 PM #14
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07-20-2009, 07:09 PM #15
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07-21-2009, 01:36 PM #16
I've always used tr-55's and it had never happened and I just changed the plug and wire and its been about 5 months now and its been good... I think it was just like manufacture defect
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