air condition FORD E SERIES 1999 4.G 7.3L Diesel Supplement Manual

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.
At temperatures below ±7ÉC (20ÉF), Number 2±D diesel fuel may thicken
enough to clog the fuel filter. Your engine is equipped with 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 may be clogged. For best
results in cold weather, use Number 1±D diesel fuel or ªwinterizedº
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
in-tank fuel sending unit, 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 0ÉC (32ÉF) 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.
An auxiliary PCM can be purchased through your Ford dealer which, in
conjunction with your vehicle's control software, allows the engine to run
at an increased idle speed for improving cab heat.
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.
Starting
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Engine lubrication for severe service operation
The following severe service operating conditions require unique engine
maintenance procedures:
²towing a trailer over 1 600 km (1 000 miles)
²sustained, high speed driving at Gross Vehicle Weight Rating
(maximum loaded weight for vehicle operation during hot
weather-above 32ÉC [90ÉF]).
²frequent or extended idling (over 10 minutes per hour of normal
driving).
²operating in severe dust conditions.
²frequent, short trips of 16 km (10 miles) or less during freezing
weather
If you are operating your vehicle under any of these conditions, observe
the following service procedures:
²Change engine oil and filter every 5 000 km (3 000 miles).
²Use Motorcraft oil or an equivalent oil conforming to Ford
Specification ESR-M2C171±C or API categories CG-4/SH. Do not use
oils labeled withonlyone of the following category designations, SG,
SH, CE, CF-4 or CG-4, as they could cause engine damage.
For more information refer theSevere Duty Maintenance Schedulein
the ªService Guideº.
REPLACING AIR CLEANER
When replacing the air cleaner, use a Motorcraft filter or its equivalent.
Refer toLubricant and Maintenance Materials Specificationsin this
supplement.
Failure to use the correct filter may result in severe engine
damage when driving through deep water and/or encountering
unusually heavy precipitation conditions.
1. Remove air cleaner, taking care to prevent dirt from falling into the
engine air intake.
2. Clean the air cleaner tray and cover to ensure good sealing.
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3. After replacing the air cleaner, be sure that the rubber water drain
hose is not kinked under the tray. If so, adjust the hose so that it hangs
free. Failure to do so may result in severe engine damage when driving
through deep water and/or encountering unusually heavy precipitation
conditions.
FUEL FILTER/WATER SEPARATOR
The engine is equipped with a combination fuel filter/water separator
located in the ªVº of the engine.
Water should be drained from the
filter bowl whenever the warning
light comes on or every 8 000 km (5
000 miles). The WATER IN FUEL
light will come on when
approximately 100 cc (0.2 pints) of water accumulates in the separator.
Replace the fuel filter with Motorcraft Part No. FD-4595±A (Ford Part
No. F4TZ-9N184±B).
Fuel filter/water separator drain procedure
1. Stop the vehicle andshut offthe engine.
The vehicle must be stopped with the engine off when draining
the filter bowl. Fuel may ignite if separator is drained while the
engine is running or vehicle is moving.
2. Open the hood. Place an
appropriate container under the
filter drain under the vehicle.
WATER
IN
FUEL
General maintenance information
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