Symptom Chart

WARNING: This page is about a different variant/trim than selected.

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: DIAGNOSTIC METHODS .

Condition	Possible Sources	Actions
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. CHECK the resistance of the block heater. If the resistance does not measure between 12.5 and 17 ohms, INSTALL a new block heater.
The electric cooling fan is inoperative in one or more speeds or does not operate correctly.	Wiring Relays Fuses Cooling fan motor Cooling fan resistor	Refer to OEM WIRING DIAGRAMS -- (EXCEPT HYBRID) .
The electric cooling fan stays on all the time.	Wiring Relays	Refer to OEM WIRING DIAGRAMS -- (EXCEPT HYBRID) .
Noisy electric cooling fan operation.	Foreign material contamination Fan motor	REMOVE the foreign material from the cooling fan and shroud. TEST the system for normal operation. If still noisy, INSTALL a new cooling fan assembly.
Noisy electric cooling fan operation.	Fan blade detached from fan motor	INSTALL a new cooling fan assembly.