JEEP CHEROKEE 1990: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

General Information

NHTSA Campaign ID Number: 91V003000

Make Model Year
JEEP CHEROKEE 1990
Date Owners Notified Date Received by ODI Date Added to Database
1991-03-07 1991-10-02 1991-01-15

Production Dates: 1989-01-01 - 1990-06-01

Manufacturers Involved: Chrysler (FCA US, LLC)

Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

Potential Number Of Units Affected: 33000

Report Initiator: ODI ODI Report

Summary

THERE MAY BE HYDRAULIC FLUID CONTAMINATION FROM CONDENSATION FORMATION THAT CAN PLUG THE ABS BRAKE BOOSTER PUMP FILTER; STRESS CORROSION OF THE MASTER CYLINDER SNAP RING HAS BEEN TRACED TO CHLORINE LEAKING FROM THE LOW PRESSURE HYDRAULIC HOSE WHICH MAY CAUSE IT TO BREAK; FRONT BRAKE HOSE TO TIRE INTERFERENCE WHICH MAY CAUSE FAILURE OF THE BRAKE HOSE.

Consequence

CONTAMINATION OF THE HYDRAULIC FLUID CAN CAUSEMALFUNCTIONING OF THE ANTI-LOCK BRAKE SYSTEM; LOW PRESSURE HOSE LEAKAGE CAUSESLOSS OF BRAKE FLUID AND ALSO RESULTS IN CORROSION AND FAILURE OF THE MASTERCYLINDER SNAP RING, RESULTING COMPLETE BRAKE FAILURE; FAILURE OF THE FRONT BRAKEHOSE DUE TO HOSE TO TIRE INTERFERENCE WILL CAUSE FAILURE OF ONE HALF OF THEBRAKE SYSTEM RESULTING IN A LONGER STOPPING DISTANCE THAN EXPECTED.

Remedy

REPLACE ABS LOW PRESSURE HOSE; REBUILD MASTER BRAKE CYLINDER; INSPECT, SERVICE INTERFERENCE PROBLEMS, AND REPLACE FRONT BRAKE HOSE AS NECESSARY.

Notes

SYSTEM: HYDRAULIC FLUID CONTAMINATION; ANTI-LOCK BRAKE SYSTEM 'ABS'.VEHICLE DESCRIPTION: MULTI-PURPOSE VEHICLES EQUIPPED WITH ANTI-LOCK BRAKESYSTEM.