Firebird V8-305 5.0L VIN E TBI (1989)
Windshield: All Technical Service Bulletins
Wiper Blades - Chatter on Windshield
Bulletin Number:
91-10-8
Reference Number:
031066
Publish Date:
11/90
Subject:
CHATTERING WIPER BLADES OR BLADE WIPEABILITY (CLEANING PROCEDURE)
Models
Affected:
1982-1991 ALL MODELS
This bulletin cancels and replaces bulletin 87-10-4 issued 10/86. Please discard bulletin 87-10-4.
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, car wax 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.