Pinpoint Test B : Pinpoint Test
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- B1 CARRY OUT INSPECTION AND VERIFICATION
- Carry out Inspection and Verification .
Are any concerns present?
Yes REPAIR as needed. No GO to B2 - B2 CHECK FOR NON-OEM ENGINE ENHANCEMENT COMPONENTS
- Check the engine for any non-OEM components.
Are there any non-OEM components on the engine?
Yes ADVISE the customer the engine modifications may be causing the engine to overheat. No GO to B3 - B3 CHECK FOR AN AIRFLOW OBSTRUCTION AND MISSING AIR DEFLECTORSNOTE: Verify no vehicle front end damage is present.
- 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 B4 - B4 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 B5 - B5 CHECK THE ENGINE COOLANT FOR AN INTERNAL LEAK
- Inspect the engine coolant in the degas bottle for signs of engine oil or transmission fluid.
Is engine oil or transmission fluid evident in the coolant?
Yes If engine oil is evident, REFER to: Engine . If transmission fluid is evident, INSTALL a new transmission fluid cooler. REFER to: Transmission Fluid Cooler - 6.7L Power Stroke Diesel . REPAIR the transmission as necessary. REFER to: Diagnosis By Symptom . No GO to B6 - B6 CHECK THE TRANSMISSION FLUID FOR COOLANT
- Remove the oil level indicator from transmission.
Is coolant evident in the transmission fluid?
Yes INSTALL a new transmission fluid cooler. Refer to: Transmission Fluid Cooler - 6.7L Power Stroke Diesel . REPAIR the transmission as necessary. REFER to: Diagnosis By Symptom . No GO to B7 - B7 CHECK THE ENGINE OIL FOR COOLANT
- Remove the oil level indicator from the engine.
Is coolant evident in the engine oil?
Yes REFER to: Engine . No GO to B8 - B8 CHECK THE COOLING SYSTEM FOR COMBUSTION GASESNOTE: 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 . No GO to B9 - B9 CHECK THE COOLING FAN CLUTCH OPERATION
- Ignition OFF.
- Check the cooling fan clutch operation. Refer to Engine Controls - Symptom Charts (Diesel) .
Is the cooling fan clutch operation OK?
Yes GO to B10 No INSTALL a new cooling fan clutch. Refer to: Cooling Fan . - B10 CHECK THE COOLANT PUMP OPERATION
- Start the engine.
- Allow the engine to run for 10 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 B11 No INSTALL a new coolant pump. Refer to: Coolant Pump . - B11 CHECK THE THERMOSTAT OPERATION
- Start the engine.
- Allow the engine to run for 10 minutes. Place the climate control function selector in the MAX HEAT position. Feel the upper radiator hose.
Is the upper radiator hose hot?
Yes CHECK the temperature gauge operation. Refer to: Instrumentation, Message Center and Warning Chimes . No GO to B12 - B12 VISUALLY INSPECT THE THERMOSTAT
- Carry out the Thermostat Visual Inspection .
Is the thermostat damaged?
Yes INSTALL a new thermostat. Refer to: Thermostat . No INSTALL a new thermostat. Refer to: Thermostat . If the engine still overheats, INSTALL a new radiator. REFER to: Radiator .