United States 07V346000
Mack Trucks, Inc.
The problem
ON CERTAIN TRUCKS, AN UNPROTECTED LEAD IN THE THERMOSWITCH OF THE HEATER MAY MAKE CONTACT WITH ANOTHER POST POSSIBLY CREATING A SHORT CIRCUIT, WHICH CAN RESULT IN CONTINUOUS OPERATION OF THE HEATING ELEMENT.
Risk
IF THE CONDITION EXISTS AND THE KEY IS LEFT ON WITHOUT FUEL IN THE FILTER, THE HEATING ELEMENT MAY HEAT TO A POINT WHERE A FLAME BECOMES PRESENT AT THE TIP OF THE ELEMENT WHICH COULD RESULT IN A VEHICLE FIRE.
What owners should do
DEALERS WILL INSPECT THE THERMOSWITCH AND WILL REPLACE IT IF NECESSARY. THE RECALL BEGAN ON SEPTEMBER 10, 2007. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
Units 121