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Your vehicle is equipped with a Motorcraft
maintenance-free battery which normally
does not require additional water during its
life of service.
For longer, trouble-free operation, keep the
top of the battery clean and dry. Also, make
certain the battery cables are always tightly
fastened to the battery terminals.
If you see any corrosion on the battery or
terminals, remove the cables from the
terminals and clean with a wire brush. You
can neutralize the acid with a solution of
baking soda and water.
It is recommended that the negative battery
cable terminal be disconnected from the
battery if you plan to store your vehicle for
an extended period of time.
Because your vehicle’s engine is electronically
controlled by a computer, some control
conditions are maintained by power from the
battery. When the battery is disconnected or
a new battery is installed, the engine must
relearn its idle and fuel trim strategy for
optimum driveability and performance.
Flexible fuel vehicles (FFV) must also relearn
the ethanol content of the fuel for optimum
driveability and performance. To begin this
process:
1. With your vehicle at a complete stop, set
the parking brake.
2. Put the gearshift in P(Park), turn off all
accessories.
3. Start the engine. Run the engine until it
reaches normal operating temperature.
4. Allow the engine to idle for at least one
minute.
5. Turn the air conditioning on and allow the
engine to idle for at least one minute.
6. Release the parking brake. With your foot
on the brake pedal and with the air
conditioning on, put your vehicle in D
(Drive) and allow the engine to idle for at
least one minute.
• If you do not allow the engine to
relearn its idle trim, the idle quality of
your vehicle may be adversely
affected until the idle trim is
eventually relearned.
7. Drive your vehicle to complete the
relearning process
• Your vehicle may need to be driven 10
miles (16 kilometers) or more to
relearn the idle and fuel trim strategy
along with the ethanol content for
flexible fuel vehicles.
• For flexible fuel vehicles, if you are
operating on E85, you may experience
poor starts or an inability to start the
engine and driveability problems until
the fuel trim and ethanol content
have been relearned.
If the battery has been disconnected or a new
battery has been installed, the clock and
radio settings must be reset once the battery
is reconnected.
249
MKS (), enUSA
Maintenance
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