1991 Kenworth T400 Recalls

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NHTSA Campaign Number: 91V090000
Manufacturer: PACCAR INCORPORATED
Manufactured Begin Date: May 1st, 1988
Manufactured End Date: August 1st, 1990
Date of Owner Notification: September 30th, 1991

Defect Summary:
SPRAGUE WIPER ASSEMBLY PIVOT CAN SEIZE DUE TO GALVANIC CORROSION BETWEEN THE ZINC-PLATED STEEL SHAFT AND THE BRONZE BUSHINGS.

Consequence Summary:
THIS CORROSION CAN CAUSE WIPER ARM/BLADE ASSEMBLY TO STOPWIPING WINDSHIELD, THIS COULD AFFECT DRIVER VISIBILITY AND RESULT IN ANACCIDENT.

Corrective Summary:
REPLACE SPRAGUE WIPER ASSEMBLY PIVOT WITH AN ASSEMBLY NOT SUSCEPTIBLE TO GALVANIC CORROSION.

Recall Notes:
SYSTEM: WIPER ASSEMBLY PIVOT.VEEHICLE DESCRIPTION: HEAVY TRUCKS EQUIPPED WITH SPRAGUE WIPER ASSEMBLY PIVOT.

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NHTSA Campaign Number: 91V043000
Manufacturer: PACCAR INCORPORATED
Manufactured Begin Date: August 1st, 1989
Manufactured End Date: January 1st, 1991
Date of Owner Notification: July 10th, 1991

Defect Summary:
AIR BRAKE SYSTEM WAS MODIFIED BY ADDING A LONGER AIR LINE BETWEEN THE ABS SOLENOID AND THE TRANSFER TEE TO SIMPLIFY MANUFACTURING. THIS MODIFICATION CAUSED THE TRUCKS TO BE IN NON-COMPLIANCE WITH FMVSS 121, BRAKE TIMING TEST.

Consequence Summary:
THE MISTIMED BRAKE AND ABS SYSTEM MAY CAUSE THE TRUCK TOFAIL THE STOPPING DISTANCE REQUIREMENT OF THE FMVSS, WHICH MAY LEAD TO ANACCIDENT.

Corrective Summary:
REMOVE THE EXTRA LENGTH OF AIR LINE AND INSTALL THE TRANSFER TEE AT THE ABS SOLENOID.

Recall Notes:
SYSTEM: AIR BRAKE SYSTEM AND ANTI-LOCK AIR BRAKES; FMVSS 121.VEHICLE DESCRIPTION: TRUCKS BUILT WITH AIRGLIDE 100 SUSPENSION AND BOSCH ABSBRAKE SYSTEM.