Pinpoint Test B : Pinpoint Test
WARNING: This page is about a different car, the 2019 Ford F-350 Super Duty and 2019 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 the Inspection and Verification
Are any concerns present?
Yes REPAIR as needed. No GO to B2 - B2 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DTCS
- Ignition ON.
- Using a scan tool, perform PCM self-test.
Is DTC P0217, P1285, or P1299 present?
Yes GO to B3 No Actual engine overheating has not been verified. CHECK the engine coolant temperature gauge operation. REFER to: Information Center - Instrumentation, Message Center And Warning Chimes . If any other PCM DTCs are retrieved, REFER to: Electronic Engine Controls . - 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 radiator. REFER to: Radiator . REPAIR the transmission as necessary. For 6R100, REFER to: Diagnosis By Symptom . For 6R140, REFER to: Diagnosis By Symptom . No GO to B6 - B6 CHECK THE ENGINE OIL AND TRANSMISSION FLUID FOR COOLANT
- Remove the oil level indicator from the engine and the transmission.
Is coolant evident in the engine oil or transmission fluid?
Yes If coolant is in the engine oil, REFER to: Engine . If coolant is in the transmission fluid, INSTALL a new radiator. REFER to: Radiator . REPAIR the transmission as necessary. For 6R100, REFER to: Diagnosis By Symptom . For 6R140, REFER to: Diagnosis By Symptom . No GO to B7 - B7 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 B8 - B8 CHECK THE COOLING FAN CLUTCH OPERATION
- Ignition OFF.
- Perform the Fan Clutch Tests in the Component Tests portion of this information.
Is the cooling fan clutch operation OK?
Yes GO to B9 No INSTALL a new fan clutch. REFER to: Cooling Fan . - B9 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 B10 No INSTALL a new coolant pump. REFER to: Coolant Pump . - B10 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: Information Center - Instrumentation, Message Center And Warning Chimes . No GO to B11 - B11 VISUALLY INSPECT THE THERMOSTAT
- Carry out 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 .