chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

All Technical Service Bulletins: > < Cooling System - Excessive Fan Noise
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PARTS INFORMATION

Part Number

Application

22073412

1987-88 M Van with 4.3L, with

A/C without GT4

22073403

1988 C/K with 4.3L with

GU2/GU4/GU6 and KC4/V01/V02/A/C 5.7L with GU4/GU6 and KC4/V01/V02/A/C 1987-88 G Van with 4.3L, 5.0L, 5.7L
(Vin Code K) with heavy duty cooling and without GT4

22068662

1988 C/K with 5.0L with

GU2/GU4/GU6 without A/C

22049776

1987-88 R/V with 5.0L, 5.7L with

A/C, without GT4

New parts received from GMSPO that fall within the date code break points listed above should be returned to the local GMSPO warehouse for credit
with an attached copy of this bulletin. Use Labor Operation J3390 when performing these repairs.

Labor Times:

S/T      -     .4 hr.
C/K

-

.3 hr.

R/V

-

.3 hr.

G

-

.4 hr.

M

-

.5 hr.

All Technical Service Bulletins: > < Cooling System - Excessive Fan Noise