MACK MR 1999: SERVICE BRAKES, AIR:ANTILOCK

General Information

NHTSA Campaign ID Number: 00V232009

Make Model Year
MACK MR 1999
Date Owners Notified Date Received by ODI Date Added to Database
2001-01-19 2000-09-13 2000-09-26

Production Dates: 1998-07-01 - 2000-08-15

Manufacturers Involved: Mack Trucks, Inc.

Component: SERVICE BRAKES, AIR:ANTILOCK

Potential Number Of Units Affected: 651

Report Initiator: MFR MFR Report

Summary

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS BUILT WITH BENDIX AIR ABS WITH AN EC-17 1030R ELECTRONIC CONTROL UNIT "ECU", THERE HAVE BEEN REPORTS OF UNWANTED ABS ACTIVATION AT LOW SPEEDS CAUSED BY 1" CHAFED ABS WHEEL SPEED SENSOR WIRES ON ROTATING PARTS OR 2" A DAMAGED COMPONENT AT THE WHEEL END THAT GENERATES A CERTAIN TYPE OF ERRATIC SENSOR SIGNAL.

Consequence

THIS CONDITION COULD CAUSE THE ABS ECU TO EXHAUST THE AIR AT THE AIR BRAKE MODULATORS FOR ONE OR MORE OF THE WHEELS. THIS COULD RESULT IN EXTENDED BRAKING DISTANCES AND A POSSIBLE CRASH.

Remedy

DEALERS WILL REPLACE THE ABS ECU.

Notes

OWNER NOTIFICATION BEGAN JANUARY 19, 2001. 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 MACK AT 1-610-709-3011.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT '1-888-327-4236'.