2019 FORD F650/750 check engine

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Page 196 of 387

FORD F650/750 2019  Owners Manual To top up the engine oil level do the
following:
1. Clean the area surrounding the engine
oil filler cap before you remove it.
2. Remove the engine oil filler cap.  See Under Hood Overview (page 190).

Page 197 of 387

FORD F650/750 2019  Owners Manual Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by the vehicle Warranty.
Only use oils certified for gasoline engines

Page 199 of 387

FORD F650/750 2019  Owners Manual 4.
Make sure that the sealing surfaces on
the filter housing and cover are clean
and free of debris.
5. Install the new filter element.
6. Install the filter cover.
7. Install the bolts finger-tight.

Page 200 of 387

FORD F650/750 2019  Owners Manual Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between -30°F (-34°C) and -34°F
(-37°C). Check the coolant concentration
using a refractometer. We do not
recommen

Page 201 of 387

FORD F650/750 2019  Owners Manual 4. Replace the coolant reservoir cap and
turn it clockwise until you feel a strong
resistance.
5. Check the coolant level in the coolant reservoir the next few times you drive
your vehicle. If necessa

Page 202 of 387

FORD F650/750 2019  Owners Manual 10.
Engine cooling system: Repeat steps
5 through 9 until the coolant level has
stabilized and is no longer dropping
after each step and the upper
radiator hose at the radiator is warm
to the touch, i

Page 203 of 387

FORD F650/750 2019  Owners Manual Engine-driven Cooling Fan
Your vehicle may have an engine driven
cooling fan drive also called a fan clutch.
This fan drive changes the fan speed to
match the vehicle
’s changing cooling air
flow re

Page 204 of 387

FORD F650/750 2019  Owners Manual Adding Coolant
WARNING: Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap