Engine misfires due to corroded or damaged spark plug wires on Chrysler New Yorker

Submitted by Jim Taddei · May 29, 2025
Published by RepairPal

Problem overview

An engine misfire may be caused by corrosion at the ignition coil and/or spark plug terminals or from cracked or brittle insulation on the spark plug wires themselves. Our technicians recommend complete inspection of the spark plug wires and replacement as necessary when engine misfires occur. If corrosion is noted on the coil towers or spark plugs those affected parts should be replaced as well.

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