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NHTSA Engineering Analysis EA86025

Engineering Analysis · WINDSHIELD WIPERS · Opened 1986-08-25 · Closed 1988-03-02

Investigation

Action number
EA86025
Type
Engineering Analysis
Open date
1986-08-25
Close date
1988-03-02
Manufacturer
General Motors, LLC
Affected makes
BUICK; CADILLAC; CHEVROLET; OLDSMOBILE; PONTIAC
Affected components
VISIBILITY
Affected model years
1985
Affected (make, year) variants
18

Summary

SUMMARY:GM BELIEVES THE PROBLEM HAS BEEN CORRECTED THROUGH ITS PUBLI-CATION OF 7 SERVICE BULLETINS CONCERNING THIS MATTER. IN ADDITION, GMDOES NOT BELIEVE WINDSHIELD WIPER FAILURE REPRESENTS A SAFETY HAZARD.ANALYSIS: THREE FAILURE MODES HAVE BEEN IDENTIFIED; INSULATING FILM MAYBUILD UP BETWEEN THE BRUSH FACE AND THE COMMUTATOR OF THE WIPER MOTOR,CORROSION MAY FORM IN THE WIPER MOTOR BRUSH AND DISENGAGEMENT OF THEWIPER ARMS MAY OCCUR. IN VIEW OF THE EXISTING LEGAL PRECEDENT, THE LARGENUMBER OF WARRANTY CLAIMS CONCERNING WIPER MOTOR FAILURES (114,000) ANDTHE HIGH WIPER MOTOR AND MOTOR KIT PART SALES (251,000), IT IS IMPERATIVETHAT THIS MATTER RECEIVE MANAGEMENT SUPPORT.STATUS: GM RESPONSE DATED 2/23/87. ANALYZING AS TIME PERMITS.EA CLOSED 3/2/88.=== D@

Source

Authoritative
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