The defect
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.
The 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.
The remedy
WHERE NECESSARY, REPLACE THE SOLENOID SPRING, ADJUST SOLENOID, REPLACE WIRES, AND VERIFY MAXIMUM POWER REQUIREMENTS TO THE SOLENOID.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Thomas Bus | 1988, 1989, 1990, 1991 |
| Thomas School Bus | 1988, 1989, 1990, 1991 |
Components: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Thomas Bus | 1988 | 0 | 5 |
| Thomas Bus | 1989 | 0 | 6 |
| Thomas Bus | 1990 | 0 | 7 |
| Thomas Bus | 1991 | 0 | 6 |
| Thomas School Bus | 1988 | 0 | 8 |
| Thomas School Bus | 1989 | 0 | 9 |
| Thomas School Bus | 1990 | 0 | 12 |
| Thomas School Bus | 1991 | 0 | 11 |
Other fuel system, gasoline recalls in 1991
16 of the 220 recall campaigns reported to NHTSA in 1991 concerned the fuel system, gasoline; THOMAS BUILT BUSES, INC. filed 100 campaigns in all.
| 91V216000 13 Dec 1991 | GENERAL MOTORS CORP. |
| 91V201000 18 Nov 1991 | VOLKSWAGEN OF AMERICA,INC |
| 91V146000 4 Sept 1991 | FORD MOTOR COMPANY |
| 91V132000 5 Aug 1991 | CHRYSLER CORPORATION |
| 91V110000 26 Jun 1991 | TOYOTA MOTOR CO., LTD. |
| 91V108000 21 Jun 1991 | GENERAL MOTORS CORP. |
| 91V103000 17 Jun 1991 | PORSCHE CARS N.A. INC. |
| 91V087000 3 Jun 1991 | VOLKSWAGEN OF AMERICA,INC |
NHTSA recalls (public domain) · all recalls of 1991