2012 Ford F550 Cab Diesel Supplement 3rd Printing - Page 66

2012 Ford F550 Cab Manual

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Maintenance and Specifications • Try operating the starter switch several times. Should the switch be corroded, this operation may clean the contacts or make the switch temporarily operable until you can reach the dealer. • If all electrical connections are tight and you need assistance to start, refer to Jump starting in the Roadside Emergencies chapter of your Owner's Guide. If engine cranks but won't start Prolonged starter cranking (in excess of 10 seconds) could cause damage to the starter motor. • Check the fuel gauge. You may be out of fuel. If the gauge shows that there is fuel in the tank, the trouble may be in the electrical system or the fuel system. If equipped with an auxiliary tank, be sure that the tank control switch is set for the tank with fuel and not on an empty tank. • Leaving the ignition key turned to on for over two minutes without starting may make starting difficult because the glow plugs will cease activation. Reset the system by turning the ignition key to off and then back to on again. If the engine runs hot The following could cause the engine to overheat: • Lack of coolant. • Dirty cooling system. • Plugged radiator fins, A/C condenser and/or oil cooler. • Malfunctioning fan drive. • Driving with frozen coolant. • Sticking thermostat. • Overloading or pulling heavy trailers during hot weather. • Grill or radiator air blockage. • Slipping or missing drive belt. • Plugged or very dirty air filter. 66 2012 Diesel (67l) Supplement, 3rd Printing USA (fus)

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•
Try operating the starter switch several times. Should the switch be
corroded, this operation may clean the contacts or make the switch
temporarily operable until you can reach the dealer.
•
If all electrical connections are tight and you need assistance to start,
refer to
Jump starting
in the
Roadside Emergencies
chapter of your
Owner’s Guide.
If engine cranks but won’t start
Prolonged starter cranking (in excess of 10 seconds) could cause
damage to the starter motor.
•
Check the fuel gauge. You may be out of fuel. If the gauge shows that
there is fuel in the tank, the trouble may be in the electrical system or
the fuel system. If equipped with an auxiliary tank, be sure that the
tank control switch is set for the tank with fuel and not on an empty
tank.
•
Leaving the ignition key turned to on for over two minutes without
starting may make starting difficult because the glow plugs will cease
activation. Reset the system by turning the ignition key to off and
then back to on again.
If the engine runs hot
The following could cause the engine to overheat:
•
Lack of coolant.
•
Dirty cooling system.
•
Plugged radiator fins, A/C condenser and/or oil cooler.
•
Malfunctioning fan drive.
•
Driving with frozen coolant.
•
Sticking thermostat.
•
Overloading or pulling heavy trailers during hot weather.
•
Grill or radiator air blockage.
•
Slipping or missing drive belt.
•
Plugged or very dirty air filter.
Maintenance and Specifications
66
2012 Diesel
(67l)
Supplement, 3rd Printing
USA
(fus)