BRAKE SQUEAL POSSIBLE CAUSES

VEHICLES AFFECTED: 1984 Corvette

Brake squeal has been experienced on some 1984 Corvettes. Two (2) possible causes for brake squeal are:

1. Very early Corvettes may exhibit front brake squeal that may be caused by 'corrosion insulators', located on outboard pads, becoming dislodged and rubbing against the centre portion of the rotor. A new insulator to brake pad adhesive was implemented shortly after start of production. Vehicles experiencing this condition can be repaired by installing front brake pads, P/N 14067582.

2. Rear brakes may have a sensitivity to 'tip-in' brake squeal on light to moderate brake stops. 'Tip-in' brake squeal vehicles can be repaired by installing rear rotors, P/N 14084143. It is suggested that both rear rotors be replaced on tip-in squeal condition vehicles. Vehicles starting with serial number E5136435 were built with P/N 14084143 rear rotors.

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.