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: Engine (303-00 Engine System - General Information, Diagnosis and Testing). |
|---|---|
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: Engine (303-00 Engine System - General Information, Diagnosis and Testing). |
|---|---|
No | GO to B8 |
B8 CHECK THE COOLING SYSTEM FOR COMBUSTION GASES
NOTE: Use UView® Combustion Leak Tester part number UVU560000-R or equivalent.
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: Engine (303-00 Engine System - General Information, Diagnosis and Testing). |
|---|---|
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?
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.