Windshield Wiper Blades - Chatter

9220pontiac01

Bulletin Number:
91-10-30A
Reference Number:
131029R
Publish Date:
4/92


Subject:
WINDSHIELD WIPER BLADE CHATTER (REVISED BLADE AND INSERT)

Models
Affected:
1988-91 SUNBIRD MODELS


This bulletin cancels and replaces bulletin 91-10-30 issued 7/91. Please discard, bulletin 91-10-30. This bulletin is being revised to correct the VIN breakpoints.

IMPORTANT:
Before replacing any part, clean windshield and both blades with GM windshield cleaner, P/N 1050011 or equivalent. The glass is clean when rinse water does not "bead-up" across entire glass surface. Multiple cleaning may be required to remove all contaminants. Also, clean the wiper blades by using a cloth that has been saturated with full strength washer solution by wiping vigorously. Rinse the blades with clean water after cleaning.

Condition:
Some 1988-1991 Sunbird models built prior to the VIN Breakpoint M7566731 may exhibit windshield wiper chatter or reduced wipeability at road speeds. A revised graphite impregnated wiper blade insert was used in production to improve wiper performance.

Correction:
Install revised insert. Carefully inspect blade assembly for bent or damaged conditions. Install revised wiper blade assembly if any damage is found.

P/N 22121047 - Insert Wiper Blade
P/N 5049926 - Blade, Assembly With Insert

Parts are currently available from GMSPO.

Labor Operation Number:
T1746
Labor Time:
0.3 Hours