Misfire and/or Check Engine Light Due To Failed Ignition Coil on Buick Lucerne

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 115,745 (62,000–178,000)
Engines affected: 3.8L V6, 4.6L V8, V6
3 model years affected: 2006, 2007, 2008
15 people reported this problem
Viewing 1 - 4 of 4 comments
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.
misfire between 40 and 50 mph. - plugs & wires replaced - no codes - 1 coil pack replaced. runs fine at higher speeds.

was told possible tcc sol. but car does not stall and no codes