Hey DieselVolvo, Question about this.

I just had all the glow plugs out.

The center electrode (pencil tip) seems to be connected to ground anyway, so
how does the carbon cause this to short circuit ?

I did feel like the tips were hitting carbon, but did think too much of it.

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80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
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