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Spark Plug Heat Shield Removal

46304 Views 33 Replies 22 Participants Last post by  zzyzzx
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?
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If you are trying to remove the heat shields with the plugs in place, then that's 90% of your problem. You can't get them to bend enough with the plugs in place to break away from the edges.
What do you do when you can't get the plug out because the shield (or rust and crud on the shield) is blocking your socket from removing the spark plug?
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