Wipers - Chattering Blades or Poor Wipeability

91buick01

Bulletin 91-0-4


Date Jan. '91


Ref. No. 91-088-0


Corp. Ref. No. 031066


SUBJECT: CHATTERING WIPER BLADES OR BLADE WIPEABILITY (CLEANING PROCEDURE)


MODELS AFFECTED: ALL MODELS


THIS BULLETIN CANCELS AND REPLACES BUICK SERVICE BULLETIN 87-8-7.

CONDITION:


Chattering and poor wipeability comments may be due to the windshield glass and/or wiper blades becoming contaminated by insect residue, dirt, road grime, carwax etc.

CORRECTION:


1. Clean the windshield glass with GM # 1050011 (Bon Ami) glass cleaner or equivalent.


IMPORTANT: The glass is clean when rinse water does not "bead-up", but "sheets" across the entire glass surface. Multiple cleanings may be required to remove all contaminants.


2. Clean the wiper blades by using a cloth that has been saturated with full strength washer solution and wipe vigorously. Rinse the blades with water after cleaning.