For 1990-2009 cars

# SPARK PLUG WIRE ROUTING INFORMATION

#### VEHICLES AFFECTED: 1984 Buick 'G' and 'E' Models Equipped with the 3.8L Turbocharged Engines

All spark plug wires must be connected correctly to the coil and spark plugs in the proper cylinder firing order sequence or piston damage may occur.

This illustration and the emission/tune-up label located above the radiator provide the correct spark plug wire to coil sequencing.

The illustrations should be used to ensure correct wire routing whenever service of these components are required.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.