RATTLE NOISE DUE TO LOOSE WHEEL CENTER HUB CAPS

Subject: RATTLE NOISE AS A RESULT OF LOOSE WHEEL CENTER CAPS

Model and Year: 1991 CAVALIER WITH Z24 TRIM PACKAGE

Condition: Some 1991 "J" cars with the Z24 trim package may exhibit a rattling noise due to the wheel center hub cap being loose.

Cause: Loose fit between the wheel and wheel center cap caused by oversize diameter in wheel.

Correction: Using channel-lock pliers, with a cloth on cap face to protect the disc from damage, rework the center cap wire retaining ring (as shown in the picture) in five places to provide a tight fit of the cap to the improperly machined wheels. Bend the wire ring toward the cap disc as shown to obtain a permanent set of approximately one (1) wire diameter.

This condition effects all 1991 Chevrolet J cars with Z24 from 1991 start of production through VIN breakpoint M7194096.

Labor Operation Number: T1761 Labor Time: 0.2 Hours Add Time: 0.2 (one or all)

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.