Engine Will Not Shut Off
| Cause | Correction |
|---|---|
| Electrical or Manual Fuel Shutoff Not Closing | Verify solenoid is not being energized by a short in the wiring. Check the linkage in the shutoff lever for binding. Check the ability of the spring in the pump to pull the lever to the shutoff position. |
OK | |
| Engine Running on Fumes Drawn into Air Intake. | Locate and isolate the source of fumes. |
| OK | |
| Fuel Leaking to Intake Manifold. | Check for porosity between the fuel filter mounting to the intake manifold. |