Pinpoint Test B : Pinpoint Test
WARNING: This page is about a different variant/trim than selected.
- 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: Instrumentation, Message Center and Warning Chimes . If any other PCM DTCs are retrieved, - B3 CHECK THE ACTIVE GRILL SHUTTER OPERATION
- Start the engine and let it idle for at least 30 seconds to allow the grille shutter calibration to complete.
- Using a scan tool, view PCM PIDs.
- Select the GRILL_A_CMD PID and active command the grille shutter from 100% (open) to 0% (close) while visually inspecting the grill shutter operation from the front of the vehicle.
Does the upper and lower grill shutter fully open and close?
Yes GO to B4 No Diagnose the active grill shutter is inoperative or does not operate correctly, REFER to: Active Grille Shutter . - B4 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 B5 - B5 CHECK THE ELECTRIC COOLING FAN OPERATION
- Start the engine.
- Place the climate control function selector in the MAX A/C position and the blower motor switch in the HI position.
Did the electric cooling fan operate?
Yes GO to B6 No DIAGNOSE the electric cooling fan operation. Refer to Engine Controls - Symptom Charts (Except Diesel & Hybrid) - B6 PRESSURE TEST THE DEGAS BOTTLE CAP
- Ignition OFF.
- Pressure test the degas bottle cap. Refer to Cooling System Pressure Test .
Does the cap pass the pressure test?
Yes GO to B7 No INSTALL a new cap. If the engine overheat concern persists GO to B7 - B7 CHECK THE ENGINE COOLANT LEVEL AND PRESSURE TEST THE ENGINE COOLING SYSTEMNOTE: Allow the engine to cool before checking the engine coolant level.
- Ignition OFF
- Visually inspect the engine coolant level at the degas bottle and adjust as necessary. Pressure test the engine cooling system. Refer to Cooling System Pressure Test .
Does the pressure maintain 124 - 138 kPa (18 - 20 PSI) for a minimum of 2 minutes?
Yes GO to B13 No For external coolant leaks REPAIR or INSTALL new components. If no external leaks are present GO to B8 - B8 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 . No GO to B9 - B9 CHECK THE ENGINE OIL FOR COOLANT
- Remove the oil level indicator from the engine.
Is coolant evident in the oil?
Yes REFER to: Engine . No GO to B10 - B10 CHECK THE ENGINE COOLANT FOR TRANSMISSION FLUID
- Check the engine coolant in the degas bottle for signs of transmission fluid.
Is transmission fluid evident in the engine coolant?
Yes INSTALL a new transmission fluid cooler REFER to: Transmission Fluid Cooler - 1.5L EcoBoost (118kW/160PS) - I4/2.5L Duratec (110kW/150PS) . and a new transmission fluid warmer REFER to: Transmission Fluid Warmer . REPAIR the transmission as necessary. REFER to: Automatic Transmission - 1.5L EcoBoost (118kW/160PS) - I4 . TEST the system for normal operation. No GO to B11 - B11 CHECK THE TRANSMISSION FLUID FOR ENGINE COOLANT
- Remove the transmission oil leveling plug.
- Check the transmission fluid for engine coolant.
Is engine coolant evident in the transmission fluid?
Yes INSTALL a new transmission fluid cooler REFER to: Transmission Fluid Cooler - 1.5L EcoBoost (118kW/160PS) - I4/2.5L Duratec (110kW/150PS) . INSTALL a new transmission fluid warmer REFER to: Transmission Fluid Warmer . REPAIR the transmission as necessary. REFER to: Automatic Transmission - 1.5L EcoBoost (118kW/160PS) - I4 . TEST the system for normal operation. No GO to B12 - B12 INSPECT THE CHARGE AIR COOLER
- Remove the charge air cooler from the intake manifold. REFER to: Charge Air Cooler (CAC) .
- INSPECT the CAC for evidence of leaks.
Are any concerns present?
Yes INSTALL a new CAC. REFER to: Charge Air Cooler (CAC) . No GO to B13 - B13 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 B14 - B14 CHECK THE COOLANT PUMP OPERATION
- Start the engine.
- Allow the engine to run for 30 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 B15 No INSTALL a new coolant pump. REFER to: Coolant Pump . - B15 VISUALLY INSPECT THE THERMOSTAT
- Carry out the Thermostat Visual Inspection in Thermostat .
Is the thermostat damaged?
Yes INSTALL a new thermostat housing. REFER to: Thermostat Housing . No INSTALL a new thermostat housing. REFER to: Thermostat Housing . If the engine still overheats, INSTALL a new radiator. REFER to: Radiator .