Symptom Chart
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
| Symptom | Possible Sources | Action |
|---|---|---|
| Engine cranks but does not start | Low fuel level. | Fill the fuel tank with sufficient fuel to enable the engine to start. |
| Fuel charging and controls. | REFER to: Fuel Charging and Controls . | |
| Contaminated fuel. | REFER to: Diesel Fuel System Contamination Repair/Flushing - Key Turned to Run or Engine Started . | |
| Poor starting | Fuel charging and controls. | REFER to: Fuel Charging and Controls . |
| Contaminated fuel. | DRAIN and REFILL the fuel system with fresh fuel. INSTALL a new fuel filter element. REFER to: Diesel Fuel System Contamination Repair/Flushing - Key Turned to Run or Engine Started . | |
| Engine starts but immediately stops | Fuel charging and controls. | REFER to: Fuel Charging and Controls . |
| Poor idling | Fuel charging and controls. | REFER to: Fuel Charging and Controls . |
| Contaminated fuel. | DRAIN and REFILL the fuel system with fresh fuel. INSTALL a new fuel filter element. REFER to: Diesel Fuel System Contamination Repair/Flushing - Key Turned to Run or Engine Started . | |
| Engine lacks power | Fuel tank to fuel filter fuel supply line blocked. | CHECK the fuel supply lines for damage. INSTALL a new fuel filter fuel supply line as necessary. |
| Fuel filter element blocked. | INSTALL a new fuel filter element. REFER to: Fuel Filter Element . | |
| Fuel charging and controls. | REFER to: Fuel Charging and Controls . | |
| Contaminated fuel. | DRAIN and REFILL the fuel system with fresh fuel. INSTALL a new fuel filter element. REFER to: Diesel Fuel System Contamination Repair/Flushing - Key Turned to Run or Engine Started . | |
| Engine misfire | Fuel charging and controls. | REFER to: Fuel Charging and Controls . |
| Excessive fuel consumption | Fuel charging and controls. | REFER to: Fuel Charging and Controls . |
| Contaminated fuel. | DRAIN and REFILL the fuel system with fresh fuel. INSTALL a new fuel filter element. REFER to: Diesel Fuel System Contamination Repair/Flushing - Key Turned to Run or Engine Started . | |
| Fuel filler nozzle shuts off prematurely | Fuel tank ventilation hose or pipe blocked. Fuel tank ventilation hose or pipe collapsed. |
CHECK the fuel tank ventilation hose for obstruction or damage. INSTALL a new fuel tank ventilation pipe as necessary. |
| Fuel tank filler pipe or hose blocked. Fuel tank filler pipe or hose collapsed. |
CHECK the fuel tank filler pipe or hose for obstruction or damage. INSTALL a new fuel tank filler pipe as necessary. | |
| Fuel gauge indication. | CHECK the fuel level in the fuel tank. CHECK the fuel indication system. For additional information, REFER to: Instrumentation, Message Center and Warning Chimes . | |
| Fuel filler nozzle at the fuel filling station not functioning correctly. | VERIFY the condition by using a known good fuel filler nozzle. | |
| Fuel loss after nozzle shutoff or during refilling | Fuel tank filler pipe or hose leaking. | CHECK the fuel tank filler pipe and hose for evidence of a fuel leak. If a fuel leak is evident, INSTALL a new fuel tank filler pipe or hose as necessary. |
| Fuel tank leaking. | CHECK the fuel tank for evidence of a fuel leak. If a fuel leak is evident, INSTALL a new fuel tank. REFER to: Fuel Tank . | |
| Fuel tank ventilation pipe or hose leaking. | CHECK the fuel tank ventilation pipe and hose for evidence of a fuel leak. If a fuel leak is evident, INSTALL a new fuel tank ventilation pipe or hose as necessary. | |