A/C System - Odors: Overview
90oldsmobile01SUBJECT A/C ODOR (CLEANING PROCEDURE)
MODELS/YEARS 1988-90 CUTLASS CALAIS, 1985-90 EIGHTY-EIGHT
AND NINETY-EIGHT, 1986-90 TORONADO AND 1988 FIRENZA
NUMBER: 90-T-31
CORP.REF.NO: 811204R
DATE: January 1990
SECTION: 1B
This bulletin cancels and supersedes Dealer Technical Bulletins 89-T-19 and 89-T-19A which may be disregarded.
This bulletin has been revised to include 1990 Eighty-Eighty, Ninety-Eight and Toronado models and 1988 Firenza models, 1988-90 Cutlass Calais models.
For 1985-1990 Cutlass Clera models use Dealer Technical Bulletin 88-T-42.
Some vehicles may experience odors emitted from the air conditioning system primarily at start up in hot, humid climates. This odor may be the result of debris in the heater/evaporator case and/or microbial growth on the evaporator core. To repair this condition, the following equipment and procedure should be used: