S10/T10 P/U 4WD V6-4.3L VIN X (1996)
Air Duct: All Technical Service Bulletins
Labor - Revised Air Inlet Replacement Operation Number
File In Section: 1 - HVAC
Bulletin No.: 66-12-04A
Date: November, 1996
Subject:
Wind Rush Noise from Right Side Dash with Maximum A/C on and Low Blower Speed (Replace Air Inlet Assembly and Gasket)
Models:
1995-96 Chevrolet and GMC S/T Models
1996 Oldsmobile Bravada with Air Conditioning
This bulletin is being revised to change the labor operation number. Please discard Corporate Bulletin Number 66-12-04 (Section 1 - HVAC)
Condition
Some owners may comment about a wind rush type noise from the right side of the dash when the A/C control is at the maximum position and the fan
blower control is on low speed. The noise will usually start at about 35 MPH (57 kph) and get louder as vehicle speed increases.
Cause
The air inlet assembly door is not sealing properly.
Correction
Verify the Recirculation Door Actuator is functioning properly. Replace the air inlet assembly and gasket per the applicable S/T Truck Service Manual,
Section 1A.
Parts Information
P/N
Description
Qty
52457315
Air Inlet Assembly
1
52458500
Gasket
1
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Op
Description
Labor Time
Air Conditioning
3.0 hrs
D2109
Module Components,
Replace