For 1990-2009 cars

# QUIET TUNING RESONATOR ASSEMBLY AVAILABLE PART NUMBER

"QUIET TUNING" RESONATOR SERVICE

#### VEHICLES AFFECTED: 1987 "H" CARS ------------------

New "Quiet Tuning" resonator assemblies are now available in addition to "Standard Tuning" assemblies for service usage on 1987 "H" cars.

The parts required for installation of the "Quiet Tuning" resonator assemblies are noted below:

DESCRIPTION QUANTITY PART NUMBER ----------- -------- ----------- Resonator 1 25533368 Clamp Assembly 2 1261589

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.