An ignition coil may fail causing one of the cylinders to misfire. Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.Google+
Car Problem Reports
Buick Lucerne Misfire Due to Failed Ignition Coil
Buick Lucerne Problem
Engines Affected: 3.8L V6, 4.6L V8
Visitor, 2008 Buick Lucerne, 3.8L V6, 62,000 mi
engine started and then stopped. had car towed to dealer where they had to replace one of the coils and the control module which was damaged due to coil shorting out.