A/C - Odors at Start Up in Hot Humid Climates: Overview

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Bulletin 90-1-1

Date Dec., '89

Ref. No. 90-025-1

Corp. Ref. No. 811204R

SUBJECT: A/C ODOR (CLEANING PROCEDURE)

MODELS AFFECTED: 1988-90 SKYHAWK, SKYLARK AND REATTA, 1985-90 ELECTRA/PARK AVENUE AND LESABRE, AND 1986-90 RIVIERA


This bulletin has been revised to include 1990 Electra/Park Avenue, LeSabre, Riviera and the 1988-1990 Reatta, Skyhawk and Skylark. This revision also adds Figure 5 to the Bulletin.

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: