SPEEDOMETER OR CRUISE CONTROL INOPERATIVE

SOME EARLY BUILD FIERO VEHICLES (PRIOR TO JANUARY 1984) MAY EXPERIENCE AN INOPERATIVE CONDITION IN THE SPEEDOMETER, OR CRUISE CONTROL UNIT. THIS CONDITION MAY BE CAUSED BY A LOOSE INSTRUMENT PANEL SPEEDOMETER EDGE BOARD CONNECTOR AT THE BASE OF THE CLUSTER ASSEMBLY. TO DIAGNOSE THE INOPERATIVE CONDITION, CHECK FOR A PROPERLY SEATED CONNECTOR. IF IT IS NOT PROPERLY SEATED, A FOAM GASKET SHOULD BE ADDED TO THE CLUSTER TO REMOVE EXCESS CLEARANCES BETWEEN THE CLUSTER AND CONNECTOR . IF THE CONDITION STILL EXISTS AND IS ISOLATED TO THE SPEEDOMETER ASSEMBLY, AFTER COMPLETING THE PROPER DIAGNOSIS, THE SPEEDOMETER ASSEMBLY SHOULD BE SENT TO AN AUTHORIZED AC-DELCO SERVICE CENTER FOR REPAIR. REFER TO CLUSTER REPLACEMENT BULLETIN 84-8-1A, "QUARTZ SPEEDOMETER - 1984 FIERO" FOR LOCATIONS OF THE SERVICE CENTERS.

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.