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Spark plug boots white dust. Cylinders 1 &4.

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Scoped_GST

15+ Year Contributor
87
0
Oct 18, 2004
Thousand Oaks, California
Searched this forum and even google for the answer.

Checked compression and its in spec.
Spark plugs NGKBPR8ES gapped to .020. Protection from blowout.
On cylinder 4 I can see arcing to the valve cover.
Checked the Coil pack and its resistance is perfect.

So on cylinder 1 and 4 the spark plug boots have white dust on them. The same white dust is on the end of the spark plug insulators themselves. Around the ceramic and also where it connects to the metal on the plug. The spark plugs look fine at the ignition tip.

I just put on new Taylor Thundervolt wires. Still doesnt feel right. No boost leaks. I'm kind of stumped here.

 

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