The defect
THE ENGINE CONTINUES TO RUN OR CAN START UP WHEN THE SENTINEL SHUTDOWN UNIT BLOCKS THE FLOW OF FUEL. THIS ALLOWS FUEL PRESSURE TO BUILD UP IN THE FUEL LINE WHICH MAY CAUSE THE FUEL LINE OR FILTER TO SPLIT OPEN AND LEAK OR SPRAY FUEL INTO THE ENGINE COMPARTMENT. CONSEQUENCE OF DEFECT: IF THIS OCCURS, THE FUEL LEAKING OR SPRAYING INTO THE ENGINE COMPARTMENT MAY CAUSE A FIRE. NOTE: AN IMMEDIATE STEP TO BE TAKEN TO PREVENT A FAILURE IS TO TURN THE CONTROL HANDLE ON THE SENTINEL SHUTDOWN UNIT FROM "RUN" TO "BYPASS".
The remedy
INSTALL A PRESSURE RELIEF VALVE INTO THE FUEL SUPPLY LINE.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Western Star | 1983, 1984, 1985 |
Components: FUEL SYSTEM, GASOLINE:DELIVERY
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Western Star | 1983 | 0 | 4 |
| Western Star | 1984 | 0 | 5 |
| Western Star | 1985 | 0 | 2 |
Other fuel system, gasoline recalls in 1986
16 of the 173 recall campaigns reported to NHTSA in 1986 concerned the fuel system, gasoline; WESTERN STAR TRUCKS, INC. filed 38 campaigns in all.
| 86V172000 22 Dec 1986 | NAVISTAR INTL CORP. |
| 86V167000 17 Dec 1986 | NISSAN DIESEL AMERICA, INC |
| 86V160000 11 Dec 1986 | CHRYSLER CORPORATION |
| 86V162000 11 Dec 1986 | FERRARI NORTH AMERICA |
| 86V149000 7 Nov 1986 | VOLKSWAGEN OF AMERICA,INC |
| 86V123000 2 Sept 1986 | FORD MOTOR COMPANY |
| 86V111000 14 Aug 1986 | FORD MOTOR COMPANY |
| 86V105000 5 Aug 1986 | FREIGHTLINER CORP. |
NHTSA recalls (public domain) · all recalls of 1986