I've got a 2007 Pontiac Grand Prix. It's my uncles car and it's got a misfire on cylinder 1&4 spark plugs are good and we tried changing the coil pack. What do

Chasing a Misfire in my 2007 Grand Prix

Project Cammie: '88 Formula 350 - Third Generation F-Body Message

2004-2008 PONTIAC GRAND PRIX IGNITION LOCK CYLINDER W/2 KEYS NEW

Pontiac Grand Prix GXP - Misfire Problem

05 08 Pontiac Grand Prix GXP missfire problem, replacing ignition

How to Tell Which Cylinder is Misfiring!

Used Chevrolet Monte Carlo for Sale Near Butte, MT

WHAT CAUSES ENGINE MISFIRE, TOP 6 REASONS FOR ENGINE MISFIRE

Have there really been US cars that required dropping the engine

Used Chevrolet Monte Carlo for Sale Near Watertown, NY