WIPER MOTOR STARTS IN HIGH SPEED ONLY (REPLACE SWITCH)

Subject: WIPER MOTOR STARTS IN HIGH SPEED (REPLACE WITH SERVICE SWITCH)

Models Affected: 1989-1990 6000, BONNEVILLE, FIREBIRD AND GRAND PRIX MODELS

This bulletin cancels and replaces bulletin 90-8-33 issued 3191. This bulletin is being revised to correct the part number. Please discard bulletin 90-8-33.

CONDITION:

------------ Some vehicles may exhibit a condition of the wiper motor starting in the high speed only.

CAUSE:

------------ Burrs on the internal motor park latch prevent the necessary movement of the latch for a normal low speed start.

CORRECTION:

------------ Install Service Package #22063283 Park Switch Assembly in the wiper motor as per the service manual. Apply grease to the latch slot per instructions given in Figure 1.

Parts are currently available from GMSPO.

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.