K 20 3/4 Ton Pickup 4WD L6-292 4.8L VIN T 1-bbl (1983)
Wiper Control Module: All Technical Service Bulletins
Pulse Wiper System - Phantom Wipe
Number:
83-94
Section:
8C (I)
Date:
Oct., 1983
Subject:
PULSE WIPER SYSTEM (RPO CD4)
PHANTOM WIPE
Model and Year: 1983 AND PRIOR - "C-K" TRUCKS
TO:
ALL CHEVROLET DEALERS
Some "C-K" trucks equipped with the optional pulse wiper system, RPO CD4, have experienced cases of phantom wipe. These
phantom wipes of the windshield wiper arms occur at engine start-up and/or randomly with the wiper system in the "off" position.
To correct any vehicle with this condition, install pulse wipe control module, P/N 15598419. The module is located under the dash to
the left of the steering column.