LW2 V6-3.0L VIN R (2000)
Technical Service Bulletin # 01-T-53
Date: 011101
A/C - Odor From Outlets at Vehicle Start Up
BULLETIN NO.: 01-T-53
ISSUE DATE: November, 2001
CATEGORY TYPE: HVAC - 05
CATEGORY: General
CORPORATION NO.: 01-01-37-013
SUBJECT:
Odor from A/C Outlets at Vehicle Start-Up (Remove Debris from Evaporator Case, Apply Cooling Coil Coating, and Install Delayed Blower Motor
Control Module)
MODELS AFFECTED:
2000 Saturn L-Series vehicles
CONDITION:
A musty odor from A/C system, most noticeable at vehicle start-up.
CAUSE:
An unpleasant (musty) odor from A/C outlets at vehicle start-up can be the result of microbial growth on the evaporator core.
CORRECTION:
Remove any debris from evaporator case, clean evaporator with disinfectant and install delayed blower motor control module according to the following
procedures.
IMPORTANT:
Before installing the delayed blower motor control module, the following information must be explained to the customer.
CUSTOMER INFORMATION
^
The delayed blower motor control module will not affect normal A/C or blower motor operation. However, the delayed blower motor control module
will activate the blower motor on high speed for approximately five minutes, if the A/C clutch has been continuously activated for four minutes or
more. The delayed blower motor control module will wait approximately five minutes after the ignition is turned OFF before activating the blower
motor. It is during this blower run time that condensate, that causes microbial growth, is removed from the evaporator core The blower motor will be
turned On with NO driver input if the conditions as stated above are met. The air rush sound created by the blower motor is noticeable from outside
the vehicle.
^
The parasitic current draw of the delayed blower motor control module, combined with the blower motor load, will lower the state of charge of the
vehicle's battery, and may negatively impact battery life depending on the driving habits of the customer.
PARTS REQUIREMENTS
CLAIM INFORMATION:
