Cutlass Ciera V6-231 3.8L (1985)
Fuel Level Sending Unit: All Technical Service Bulletins
Fuel - Electric Fuel Pump Hum Noise
SUBJECT
ELECTRIC FUEL PUMP HUM
NUMBER: 85-T-57
DATE:
August 1,1986
MODELS/YEARS
1985 CUTLASS CIERA MODEL AJ35
EQUIPPED WITH 3.8L LG3 (VIN CODE 3)SECTION: 6C
ENGINE
Some 1985 Cutlass Ciera AJ35 models with 3.8L MPFI engines may exhibit a low frequency hum audible at engine idle.
This low frequency hum may be the sound generated by the intank fuel pump and transmitted into the vehicle passenger compartment. Although not
indicative of a malfunctioning fuel pump, this condition may be a cause of dissatisfaction with some vehicle owners.
Elimination of this condition may be achieved by the installation of a new service fuel level sender and pump assembly, part number 25091847, available
from WDDGM.
Refer to the appropriate service manual for proper removal and installation procedures.