For 1990-2009 cars

# REVISED-INTERMITTENT OR INOP. POWERWINDOW LIFT MOTOR

INTERMITTENT OR INOPERATIVE POWER WINDOWLIFT ACTUATOR MOTORS

#### VEHICLES AFFECTED: 1988 Y/L/W/C/H/V CARS 1988 C/K TRUCKS ------------------

Some 1988 Y/L/W/C/H cars (except Cadillac), 1988 V cars and C/K trucks may exhibit power windowlift actuator motors that start out as intermittent operation and eventually are inoperative. The actuator motors are intermittent or inoperative due to restricted brushes making intermittent contact with the armature commutator.

If this condition exists, follow the diagnostic procedures in Section 8A of the Service Manual to determine if the switch, wiring, etc. is operating correctly. If the diagnostics show to replace the windowlift actuator or regulator, replace with the following service part numbers:

VEHICLE W/L LOCATION SERVICE PART NUMBER ------- ------------ ------------------- C/H Rear 22062567-8 L. R.

L Front 22063296-7 L. R. Rear 22062567-8 L. R.

V Front 22073443-4 L. R.

W Front 22087325-6 L . R.

Y Front 22063224-5 L. R.

C/K Truck Front 22071948-9 L. R.

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.