Defect Description For Recall
Delays Of Up To About 2 Seconds May Exist In The Brake Application Times To The Brakes On The Bogie Axles In The Presence Of Certain Types Of Wheel Speed Sensor Signal Discontinuities Or Distortions That May Occur As A Result Of Sensor Wire Failure. This Constitutes A Non-Compliance To Federal Motor Vehicle Safety Standard No. 121, “Air Brake Systems”.
Make Of Vehicle
MACK
Model Of Vehicle
DMM
Year
1978
Recall Campaign Number
78V210000
Component Description
Service Brakes, Air:Antilock:InterconneCTIng Assembly(Wiring)
Effect Of Defect
Fix Defect
Dealer Will Install New Wheel Speed Sensors That Incorporate Improved Wiring And The Present Bogie Anti-Wheel Lock System Will Be Changed To An Axle-To-Axle System For Improved Reliability.
Vehicle Manufacturer
Mack Trucks, Incorporated
Start Of Manufacture
19771001
End Of Manufacture
19780901
Type Of Vehicle Recall
V
Number Affected
19370
Date Owners Notified
19781107
Initiated By
Mfr
Responsible Manufacturer
Mack Trucks, Inc.
Date Report Received
19781003
Make Campaign Number
Part Number
571
Federal Motor Vehicle Safety Standard
121