WHISTLE NOISE FROM HEATER- A/C UNIT (REPAIR DRAIN). Buick Electra/Park Avenue 1987

For 1990-2009 cars

# WHISTLE NOISE FROM HEATER- A/C UNIT (REPAIR DRAIN)

#### MODELS AFFECTED: 1987 LESABRE MODELS (H37, H69 ONLY) 1987 ELECTRA LIMITED MODEL (X69 ONLY)

A whistling noise may occur during operation of the Heater-A/C fan. The whistling noise is most objectionable at the middle fan speed and the pitch gets higher as fan speed gets higher. The whistling noise is most noticeable with the fan running and the vehicle standing still.

The correction is to extend the heater ventilation air condition case plastic drain with a rubber tube 1/2" I.D. x 2" long, Part Number 3053706, using clamp 477402 (or equivalent hex worm gear). This can most easily be installed with the vehicle raised on a hoist (see attached Illustration).

#### WARRANTY INFORMATION

Labor Operation Number: T5144 Labor Time: 0.2 Hour Trouble Code: 92

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