Engine Cooling — Pinpoint Tests — Pinpoint Test B : Pinpoint Test — Engine Cooling - 3.7L Duratec (227kW 301PS) · Reference 5907

B4 CHECK FOR AN AIRFLOW OBSTRUCTION AND MISSING AIR DEFLECTORS

Check the radiator or A/C condenser for an external obstruction such as leaves or cardboard and verify all air deflectors are present.

Is an airflow obstruction present or air deflectors missing?

Yes	REPAIR as necessary.

No	GO to B5

B5 CHECK THE ENGINE COOLANT LEVEL AND PRESSURE TEST THE COOLING SYSTEM

Ignition OFF.

Visually check the engine coolant level in the coolant expansion tank and adjust as necessary. Pressure test the cooling system.

Does the engine cooling system leak externally?

Yes	REPAIR or INSTALL new components.

No	GO to B6

B6 CHECK THE ENGINE COOLANT FOR AN INTERNAL LEAK

Inspect the engine coolant in the coolant expansion tank for signs of engine oil.

Is engine oil evident in the coolant?

Yes	REFER to: appropriate Engine article.

No	GO to B7

B7 CHECK THE ENGINE OIL FOR COOLANT

Remove the oil level indicator from the engine.

Is coolant evident in the oil?

Yes	REFER to: appropriate Engine article.

No	GO to B8

NOTE: Use UView® Combustion Leak Tester part number UVU560000-R or equivalent.

Ford_Mustang_all_2015-2017.pdf · source reference 5907

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.