Misfire. - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-23-2007, 10:56 AM   #11
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Quote:
Originally Posted by Archon
Because water and coolant do not burn. It doesn't have to with whether or not the injector is working properly, if you are getting the coolant mixture into that cylinder it either will not fire, or fire poorly.
That'* why I want to use hotter spark plug.
Well, we going in circles here.

Thanks for replying anyway.

Regards
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Old 07-23-2007, 11:02 AM   #12
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Vas....see your pm'*.

Let'* pull the plugs on cylinder 3 and 5. Do the two compare at all or is one clean and one ugly? Burning coolant would clean the plug and it would look differently than the one next to it.

Personally..I'm starting to think PCM.
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Old 07-23-2007, 11:50 AM   #13
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Bill,it'* rain outside so I can't check it right now again but as long as I remember when I pulled 3 and 5 they looked the same.
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Old 07-23-2007, 12:08 PM   #14
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A hotter plug does not give you a hotter spark, it retains more of the heat in the plug itself. It can help in preventing carbon buildup if you do a lot of city driving, or help burning oil off from the plug. It will not help an improper mixture burn better.
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Old 07-23-2007, 12:12 PM   #15
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That'* what I needed to know.
Thanks
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Old 07-23-2007, 12:14 PM   #16
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If the plugs look the same..I'd doubt you were burning anything.
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Old 07-23-2007, 12:27 PM   #17
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As Bill said, if you are getting coolant in the cylinder, that plug will look quite different from the others. The porcelain will be quite white, and the plug looking cleaner than the others.
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Old 07-23-2007, 12:34 PM   #18
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Vas...Test mule PCM will be on the way tonight.
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Old 07-23-2007, 12:59 PM   #19
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If it'* not getting coolant in there that'* a great news for me.
I hope this is true in my case.

Bill, thank you again.

Archon, thank you for replying and great info.
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