Skyhawk L4-121 2.0L VIN 1 TBI (1988)
Wiper Blade: Customer Interest
Wiper - Blade Chatter
Bulletin:
89-10-38
Date:
August '91
Ref. No.: 89-297-10
Corp. Ref. No.: 131029
SUBJECT:
WINDSHIELD WIPER BLADE CHATTER (REVISED BLADE AND INSERT)
MODELS AFFECTED: 1988-89 SKYHAWKS
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 and wiping vigorously. Rinse the blades with clean water after cleaning.
CONDITION:
Some 1988-89 Skyhawks may exhibit windshield wiper chatter or reduced wipeability at road speeds. A revised graphite impregnated wiper blade insert
has been released 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.
