Corrosion At Ignition Coil Towers on Pontiac Montana

Problem Description and Possible Solution

Corrosion may develop at the connection between the ignition coil tower and spark plug wire resulting in an engine misfire. The Ignition coil and spark plug wire should both be replaced to correct this condition.

Problem Data
RepairPal Verified
Average mileage: 207,000 (207,000–207,000)
Engine affected: 3.4L V6
7 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005
11 people reported this problem
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Van won't start. Was told probably coil pack. Spark plugs, spark plug wires, and thermostat have been replaced.