What would cause plug wires 1,3,&5 to burn in the same spots. No sign of arcing on engine. the plug wires are on the back of the engine.

Asked by Jul 26, 2013 at 08:20 PM about the 2002 Chevrolet Impala Base

Question type: Maintenance & Repair

1 Answer

92,715

Most likely there is a common heat source that they are too close too for the type of wires they are. I would recommend using a good set of Belden or Accel wires as a replacement set and if you can afford it get heat resistant, also use some Dielectric grease on the boots to aid in removal next time you change plugs but use sparingly.

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