Symptom Chart: Engine Cooling

WARNING: This page is about a different car, the 2014 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

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 Fan control module Cooling fan motor Cooling fan resistor	REFER to the ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) .
The electric cooling fan stays on all the time	Wiring Relays	REFER to the ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) .
Noisy electric cooling fan operation	Foreign material contamination Fan motor Fan blade detached from 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. INSTALL a new cooling fan assembly.