MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE
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2015–2017 source collection · Additional coverage

Engine Cooling — Pinpoint Tests — Pinpoint Test B : Pinpoint Test

Engine Cooling - 3.7L Duratec (227kW 301PS)

Source configuration appliesSource reference 5,908HTML edition
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B8 CHECK THE COOLING SYSTEM FOR COMBUSTION GASES

Using a cooling system combustion gas leak tester, following the instructions supplied with the tester, check the coolant for combustion gases.

Are combustion gases present?

Yes

REFER to: appropriate Engine article.

No

GO to B9

B9 CHECK COOLANT CONDITION

Check the coolant for dirt, rust or contamination and check the coolant concentration.

Is the coolant condition OK?

Yes

GO to B10

No

FLUSH the engine cooling system. REFER to: Cooling System Flushing .

B10 CHECK THE ELECTRIC COOLING FAN OPERATION

Start the engine.

Place the climate control function selector in the MAX A/C position and the blower motor switch in the HI position.

Did the electric cooling fan operate?

Yes

GO to B11

No

DIAGNOSE the electric cooling fan operation. Refer to ENGINE CONTROLS - SYMPTOM CHARTS (EXCEPT DIESEL & HYBRID) .

B11 CHECK THE COOLANT PUMP OPERATION

Start the engine.

Allow the engine to run for 30 minutes. Place the climate control function selector in the MAX HEAT position. Feel the heater outlet hose.

Is the heater outlet hose hot?

Yes

GO to B12

No

INSTALL a new coolant pump. REFER to: Coolant Pump .

Ford_Mustang_all_2015-2017.pdf · source reference 5908

Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.