United States 91V169000
THOMAS BUILT BUSES, INC.
The problem
THE FUEL SHUT-OFF SOLENOID IN THE CUMMINS 6C ENGINE MAY BE FAULTY, CAUSING SPONTANEOUS INTERRUPTION OF FUEL FLOW TO THE ENGINE DURING NORMAL OPERATION. THIS RESULTS IN LOSS OF POWER TO DRIVING WHEELS, POWER STEERING, AND OTHER POWER ASSISTED OPERATING SYSTEMS.
Risk
LOSS OF ENGINE POWER AND SECONDARY LOSS OF POWER ASSISTEDSYSTEMS REDUCES STEERING CONTROL, BRAKING ABILITY, VISUAL SYSTEMS AND OTHERPOWER ASSISTED OPERATING SYSTEMS, RESULTING IN INCREASED RISK OF VEHICLEACCIDENT.
What owners should do
WHERE NECESSARY, REPLACE THE SOLENOID SPRING, ADJUST SOLENOID, REPLACE WIRES, AND VERIFY MAXIMUM POWER REQUIREMENTS TO THE SOLENOID.
Units 407