Symptom Chart
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Possible Sources | Action |
|---|---|---|
| Loss of coolant | Refer to the pinpoint test | GO to Pinpoint Test A . |
| The engine overheats | Refer to the pinpoint test | GO to Pinpoint Test B . |
| The engine does not reach normal operating temperature | Refer to the pinpoint test | GO to Pinpoint Test C . |
| The block heater does not operate correctly | Block heater power cable Block heater |
CHECK continuity in all 3 power cable circuits. If any circuit measures more than 5 ohms, INSTALL a new power cable. |
| Block heater | CHECK the resistance of the block heater. If the resistance does not measure between 30 and 40 ohms, INSTALL a new block heater. Block Heater | |
| The electric cooling fan is inoperative in one or more speeds or does not operate correctly | Wiring Relays Fuses Cooling fan motor |
REFER to the Engine Controls - Symptom Charts (Except Diesel & Hybrid) . |
| The electric cooling fan stays on all the time | Wiring Relays |
REFER to the Engine Controls - Symptom Charts (Except Diesel & Hybrid) . |
| Noisy electric cooling fan | Foreign material contamination Fan motor |
REMOVE the foreign material from the cooling fan and shroud. If still noisy, INSTALL a new cooling fan assembly. |
| Fan blade detached from fan motor | INSTALL a new cooling fan assembly. | |