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GMC Workshop Service and Repair Manuals

All Other Service Bulletins for Stabilizer Shaft: > < Interior - Hoot Noise During Highway Speeds
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Stabilizer Shaft: All Technical Service Bulletins
Interior - Hoot Noise During Highway Operation

Number:

89-55-3B

Section:

3B

Date:

DEC., 1988

Subject:

"HOOT" NOISE DURING VEHICLE HIGHWAY OPERATION

Model and Year:

1988-89 K1, K2, K3

TO:

ALL CHEVROLET DEALERS

Some 1988-89 K trucks may exhibit a "hoot" noise during vehicle highway operation. This condition is caused by wind rushing over the access holes for
the stabilizer bar link in the lower control arm.

SERVICE ACTION

Install plug in the link access hole in the lower control arms. (2 per vehicle.)

SERVICE PARTS INFORMATION

P/N 15611475

Plug-lower control arm hole

Parts are currently available from GMSPO.

For vehicles repaired under warranty, use:

Labor Operation:

T7845

Labor Time:

.2 Hr.

All Other Service Bulletins for Stabilizer Shaft: > < Interior - Hoot Noise During Highway Speeds