im just curious about any long term ill effects on removing those spark plug heat shields on a 3.9 v6. im going to be installing the napa premium wires and just afraid off cooking the boots, thats all. Is it worth removing these things?
I had to soak mine in penetrating lube everyday for about a week straight until they would even budge. Grab em with vise grips and wiggle till they're out.
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