2003 Ford Excursion Diesel Supplement 2nd Printing - Page 11

2003 Ford Excursion Manual

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Starting 5. After the engine starts, allow it to idle for about 15 seconds. (Do not increase engine speed until the oil pressure gauge indicates normal pressure.) STOPPING THE ENGINE Turn the ignition to OFF. To prolong engine life (after extended high speed or maximum GVW operation), it is recommended that a hot engine be allowed to operate at low idle for about 7-10 minutes which would allow sufficient time for the turbocharged engine to cool down. COLD WEATHER OPERATION Changing to a lighter grade engine oil also makes starting easier under these conditions. Refer to Engine oil specifications in the General maintenance information chapter. At temperatures below -7°C (20°F), Number 2-D Diesel fuel may thicken enough to clog the fuel filter. Your vehicle is equipped with an HFCM which acts as a fuel filter/heater/water separator to keep the wax melted which will help prevent fuel filter clogging. However, if the engine starts but stalls after a short time and will not restart, the fuel filter(s) may be clogged. For best results in cold weather, use Number 1-D Diesel fuel or "winterized" Number 2-D Diesel fuel which has an additive to minimize wax formation. Your vehicle is also equipped with a bypass relief valve, located on the fuel control module, which provides fuel flow to the engine if the fuel pickup should become plugged by ice or wax. To allow this bypass valve to function and avoid engine fuel starvation, it is recommended that, during cold weather operation 0°C (32°F) or below, the fuel level in your tank should not be allowed to drop below 1/4 full. This will help prevent air from entering the fuel system and stalling the engine. In cold weather below 0°C (32°F) your Diesel engine will slowly increase to a higher idle speed if left idling in P (Park). As the engine warms-up, the engine sound level will decrease due to the activation of PCM-controlled sound reduction features. Operation in snow Vehicle operation in heavy snowfall or in dry loose snow that may swirl around the front of the vehicle may feed excessive amounts of snow into the air intake system. This could plug the air cleaner with snow and cause the engine to stall and/or lose power. Refer to Air filter restriction gauge in the Diesel information chapter and Engine air filter in the Warning lights chapter for more information. 11

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5. After the engine starts, allow it to idle for about 15 seconds. (Do not
increase engine speed until the oil pressure gauge indicates normal
pressure.)
STOPPING THE ENGINE
Turn the ignition to OFF. To prolong engine life (after extended high
speed or maximum GVW operation), it is recommended that a hot engine
be allowed to operate at low idle for about 7–10 minutes which would
allow sufficient time for the turbocharged engine to cool down.
COLD WEATHER OPERATION
Changing to a lighter grade engine oil also makes starting easier under
these conditions. Refer to
Engine oil specifications
in the
General
maintenance information
chapter.
At temperatures below –7°C (20°F), Number 2–D Diesel fuel may
thicken enough to clog the fuel filter. Your vehicle is equipped with an
HFCM which acts as a fuel filter/heater/water separator to keep the wax
melted which will help prevent fuel filter clogging. However, if the engine
starts but stalls after a short time and will not restart, the fuel filter(s)
may be clogged. For best results in cold weather, use Number 1–D Diesel
fuel or “winterized” Number 2–D Diesel fuel which has an additive to
minimize wax formation.
Your vehicle is also equipped with a bypass relief valve, located on the
fuel control module, which provides fuel flow to the engine if the fuel
pickup should become plugged by ice or wax. To allow this bypass valve
to function and avoid engine fuel starvation, it is recommended that,
during cold weather operation 0°C (32°F) or below, the fuel level in your
tank should not be allowed to drop below 1/4 full. This will help prevent
air from entering the fuel system and stalling the engine.
In cold weather below 0°C (32°F) your Diesel engine will slowly increase
to a higher idle speed if left idling in P (Park). As the engine warms-up,
the engine sound level will decrease due to the activation of
PCM-controlled sound reduction features.
Operation in snow
Vehicle operation in heavy snowfall or in dry loose snow that may swirl
around the front of the vehicle may feed excessive amounts of snow into
the air intake system. This could plug the air cleaner with snow and
cause the engine to stall and/or lose power.
Refer to
Air filter restriction gauge
in the
Diesel information
chapter
and Engine air filter in the
Warning lights
chapter for more information.
Starting
11