EXCESSIVE STATIC ON AM RADIO BAND

VEHICLES AFFECTED: 1988 CAVALIER Z24

Some 1988 Z24 Cavaliers without underhood lamp option U26 may have an excessive amount of static on the AM Band of the radio. The frequency of this static is directly related to engine rpm. It is caused by normal engine radio frequency emitted through the hood to the radio antenna.

The condition may be corrected by installing a new hood hinge bolt Part Number 10018897 in the left hood hinge. See Illustration.

The bolt may be installed in either the front or rear position. This will provide a proper ground path for the hood to act as a radio frequency shield as designed.

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.