Pinpoint Test C : 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.
- 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.
- C1 CARRY OUT INSPECTION AND VERIFICATION
- Carry out the Inspection and Verification .
Were any concerns found?
Yes REPAIR as needed. No GO to C2 - C2 CHECK FOR DTC P0125 OR P0128
- Using a scan tool, perform the PCM self-test.
Is DTC P0125 or P0128 present?
Yes GO to C3 No The cooling system is operational. If an inoperative temperature gauge is suspected, CHECK the temperature gauge operation. REFER to: Information Center - Instrumentation, Message Center And Warning Chimes . If an inoperative climate control system is suspected, CHECK the climate control system operation. For Dual Automatic Temperature Control (DATC), REFER to: Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) . For Electronic Manual Temperature control (EMTC), REFER to: Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) . If any other Diagnostic Trouble Codes (DTCs) are retrieved, REFER to: Electronic Engine Controls . - C3 CHECK THE COOLANT LEVELNOTE: Allow the engine to cool before checking the coolant expansion tank.
- Visually check the engine coolant level in the coolant expansion tank
Is the engine coolant level within specification?
Yes INSTALL a new thermostat. REFER to: Thermostat . CLEAR Diagnostic Trouble Codes (DTCs). If the DTC returns check for correct CHT sensor operation. No GO to Pinpoint Test A