INTERNATIONAL 3800 1990: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC:HOSES, LINES/PIPING, AND FITTINGS

General Information

NHTSA Campaign ID Number: 89V224000

Make Model Year
INTERNATIONAL 3800 1990
Date Owners Notified Date Received by ODI Date Added to Database
1989-12-07 1989-12-11 1990-01-02

Production Dates: 1989-04-01 - 1989-11-01

Manufacturers Involved: Navistar, Inc.

Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC:HOSES, LINES/PIPING, AND FITTINGS

Potential Number Of Units Affected: 10459

Report Initiator: MFR MFR Report

Summary

THE THROTTLE VALVE INSIDE THE HYDRAULIC BRAKE BOOSTER MAY DEFORM FROM BUILDUP OF HEAT AND PRESSURE AND CLOSE-OFF FLUID RETURN PORTS.

Consequence

THIS COULD CAUSE EXCESSIVE PRESSURE BUILDUP IN THEBOOSTER CAUSING THE BRAKES TO SELF APPLY WITH A SEVERE UNEXPECTED STOP. THISCONDITION COULD ALSO RESULT IN LOSS OF POWER STEERING ASSIST. EITHER CONDITIONCOULD RESULT IN AN ACCIDENT.

Remedy

REPLACE BRAKE BOOSTER ASSEMBLY.

Notes

SYSTEM: HYDRAULIC BRAKE BOOSTER.VEHICLE DESCRIPTION: TRUCK.