Recalls for 1989 Mack Fdm

DEFECT #1 - POWER TRAIN:DRIVELINE

Posted on: 1993-11-16
Description
The driveshaft to the front driving axle is secured to a bracket using two pillow blocks.  These blocks are of insufficient strength to support the driveshaft and could fail.

Consequence
Pillow block failure allows the driveline (jackshaft)to drop down onto the roadway and create a safety hazard to other vehicles.

Corrective Action
Mack will install thicker pillow blocks and support u-bolts.

Notes
System: powertrain; driveline; bracket; support; center shaft.vehicle description: front discharge mixer model medium-duty truck chassis.note: if your vehicle is presented to an authorized dealer on an agreed uponservice date and the remedy is not provided within a reasonable time and freeof charge or the remedy is not provided within a reasonable time and free ofcharge or the remedy does not correct the defect or noncompliance, pleasecontact the national highway traffic safety administration's auto safety hotlineat 1-800-424-9393.

DEFECT #2 - VEHICLE SPEED CONTROL

Posted on: 1994-03-01
Description
Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.

Consequence
In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.

Corrective Action
A new production secondary throttle return system configuration will be installed.

Notes
System: fuel; fuel pump.vehicle description: class 8 trucks equipped with e6 and e7 engines with robert bosch p7100 mechanically-governed fuel injection pumps.note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided within a reasonable time and free of charge or the remedy does not correct the defect or noncompliance, please contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.