Windshield Wiper Blades - Chatter

9229chevy01

Number: 91-358A-8E

Section: 8E

Date: APRIL 1992

Coporate Bulletin No.: 131029R


ASE No.: B1


Subject:
WINDSHIELD WIPER BLADE CHATTER


Model and Year:
1988-91 CAVALIER


THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN 91-358-8E, DATED JUNE 1991. THE VEHICLE IDENTIFICATION NUMBERS (VIN) HAVE BEEN CORRECTED. ALL COPIES OF 91-358-8E SHOULD BE DISCARDED.

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 1988-1991 "J" cars built prior to the VIN Breakpoints listed below 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.

VIN BREAKPOINTS


Chevrolet MJ180300

M7153762

Pontiac M7566731

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