Windows - Intermittent or Inoperative Power Window

89chevy13

GMC NUMBER: 88-T-204


GROUP: 8A-Cab Electrical

DATE: March, 1989

CORPORATE
NUMBER: 831074R
SUBJECT: INTERMITTENT OR INOPERATIVE POWER WINDOWLIFT ACTUATOR MOTORS

MODELS: 1988 C/K TRUCKS
Some 1988 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. are operating correctly. If the diagnostics indicate that replacement of the windowlift aduator or regulator is necessary, replace with the following service part numbers:
WINDOWLIFT REGULATOR WITH MOTOR SERVICE
VEHICLE PART NUMBER

C/K Truck 22071948 Right Door
22071949 Left Door

For vehicles repaired under warranty, use:

Labor Operation Number: N3314 Right Door N3315 Left Door

Labor Time: .8 Hr per door

Parts are currently available from GMSPO.