Pinpoint Test A : 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.
- WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.
- A1 CARRY OUT INSPECTION AND VERIFICATION
- Carry out Inspection and Verification. Refer to: Inspection and Verification
Are any concerns present?
Yes REPAIR as needed. No GO to A2 - A2 CHECK THE COOLANT LEVELNOTE: Allow the engine to cool before checking the engine coolant level.
- Ignition OFF
- Visually inspect the engine coolant level at the degas bottle.
Is the coolant level within specifications?
Yes GO to A3 No ADJUST the coolant level as necessary. GO to A3 - A3 PRESSURE TEST THE POWERTRAIN SECONDARY COOLING SYSTEMNOTE: Allow the engine to cool before checking the engine coolant level.
- Pressure test the cooling system. Refer to Cooling System Pressure Test .
Does the cooling system leak externally?
Yes REPAIR or INSTALL new components. No ADJUST the coolant level as necessary. GO to A4 - A4 CHECK THE COOLANT FOR FUEL
- Inspect the coolant in the degas bottle for signs of fuel.
Is fuel evident in the coolant?
Yes INSTALL a new fuel cooler. REFER to: Fuel Cooler . No GO to A5 - A5 CHECK FOR COOLANT IN THE FUEL
- Drain the fuel from the fuel conditioning module and check for coolant in the fuel.
Is coolant evident in the fuel?
Yes INSTALL a new fuel cooler. REFER to: Fuel Cooler . No The cooling system is operational. - A6 CHECK THE CAC (CHARGE AIR COOLER) FOR AN INTERNAL LEAK
- CARRY OUT the CAC leak test. REFER to: Charge Air Cooler (CAC) Leak Test .
Does the CAC leak?
Yes INSTALL a new CAC. REFER to: Charge Air Cooler (CAC) . No The cooling system is operational.