NAVISTAR 4900 1999: SERVICE BRAKES, AIR

General Information

NHTSA Campaign ID Number: 99V055001

Make Model Year
NAVISTAR 4900 1999
Date Owners Notified Date Received by ODI Date Added to Database
1999-03-22 1999-03-16 1999-03-23

Production Dates: 1999-01-11 - 1999-01-20

Manufacturers Involved: INTERNATIONAL TRUCK & ENGINE CORPORATION

Manufacturer Campaign Number: 99504

Component: SERVICE BRAKES, AIR

Potential Number Of Units Affected: 1547

Report Initiator: MFR MFR Report

Summary

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS, TRANSIT AND SCHOOL BUSES, EQUIPPED WITH MERITOR AIR BRAKE AUTOMATIC SLACK ADJUSTERS. SOME OF THE AUTOMATIC SLACK ADJUSTERS HAD INSUFFICIENT TORQUE APPLIED TO THE GUIDE PAWL CAP SCREW.

Consequence

WITHOUT SUFFICIENT TORQUE ON THE GUIDE PAWL CAP SCREW, THE BRAKES COULD GRADUALLY LOSE ADJUSTMENT, INCREASING THE VEHICLE STOPPING DISTANCE.

Remedy

DEALERS WILL CHECK THE TORQUE ON THE AUTOMATIC SLACK ADJUSTER GUIDE PAWL. IF THERE IS NO TORQUE, THE BRAKES WILL BE ADJUSTED AND THE GUIDE PAWL WILL BE TIGHTENED TO 15-20 FT. LBS.

Notes

OWNER NOTIFICATION BEGAN MARCH 22, 1999.OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT NAVISTAR AT 1-800-448-7825. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT '1-888-327-4236'.