A/C - Noise/Vibration
88chevy21Number: 88-267-1B
Section: 1B
Date: JUNE, 1988
Subject: AIR CONDITIONING NOISE/VIBRATION
Model and Year: 1987-88 G VANS WITH A/C AND 4.3L, 5.0L AND 5.7L
(VIN CODES Z, H, K) ENGINES
TO: ALL CHEVROLET DEALERS
Some 1987-88 G-vans equipped with 4.3L, 5.0L and 5.7L engines may exhibit a noise/vibration when the air conditioning compressor is engaged. This noise/vibration is the result of a resonance set up in the serpentine accessory drive system with air conditioning on. If this condition is experienced on 1987 or early built 1988 G-vans, install the following kits. Installation instructions are included with the kits.
Part Number Engine
10129506 4.3L V-6 With A/C
10129505 5.0L/5.7L V-8 With A/C
Parts are currently available from GMSPO.
Labor Operation Number : Labor Time:
(V-6) T7415 .6 Hours
(V-8) T7420 .5 Hours