WINDSHIELD WIPER PHANTOM WIPE (NEW PARTS AVAILABLE)

MODELS: 1985-90 S/T TRUCK AND M/L VANS W/CD4 (Windshield Pulse Wiper System)

THIS BULLETIN CANCELS AND REPLACES GMC TRUCK SERVICE BULLETIN 90-8C-38 (CORPORATE NUMBER 968302), TO UPDATE THE LABOR TIMES. ALL COPIES OF 90-8C-38 SHOULD BE DISCARDED.

Some 1985-1990 M/L vans and S/T model trucks may exhibit intermittent phantom wipe - occasional wiper sweep of the windshield with no driver input. A new steering column wiper switch has been developed with an internal resistor to correct this condition.

The following parts can be installed to repair intermittent phantom wipe. They will service subject M/L vans and S/T trucks.

SERVICE

Part Number Description

26020403 Switch (Standard) 26020404 Switch (Tilt Wheel)

Parts are currently available through GMSPO.

WARRANTY INFORMATION

For vehicles repaired under warranty use:

Labor Models Labor Time Labor Time Operation (Standard) (Tilt Wheel)

N2610 S/T M/L 1.2 hrs 1.0 hrs

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.