Symptom Chart

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
Loss of coolant	Refer to the Diagnostic Routine	GO to PINPOINT TEST A .
The engine overheats	Refer to the Diagnostic Routine	GO to PINPOINT TEST B .
The engine does not reach normal operating temperature	Refer to the Diagnostic Routine	GO to PINPOINT TEST C .
The block heater does not operate correctly	Block heater power cable	CHECK continuity in all 3 power cable circuits. If any circuit measures more than 5 ohms, INSTALL a new power cable.
The block heater does not operate correctly	Block heater	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 FC 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	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.