HIGH IDLE SPEED WHEN COLD CAUSING HARSH SHIFT INTO GEAR

VEHICLES AFFECTED: 1985 'M' Van With 4.3L V-6 (VIN Code N) and Automatic Transmission

Customer comments may be received regarding cold fast idle speeds that seem too high, resulting in harshness when shifting from park or neutral into gear. This condition can be improved by reducing the fast idle speed from 2200 RPM to 1800 RPM.

Refer to the vehicle tune-up label for fast idle adjustment procedure.

NOTICE: This information only applies to vehicles with automatic transmissions.

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.