engine Mercury Mountaineer 1997 s Service Manual

Your vehicle does not use up
transmission fluid. However, it is
recommended that you check the
transmission fluid at least twice a
year. The fluid level should be
checked if the transmission is not
working properly, i.e., the
transmission slips or shifts slowly
or if you notice some sign of fluid
leakage.
It is preferable to check the
transmission fluid level at normal
operating temperature, after
approximately 32 km (20 miles) of
driving. However, if necessary, you
can check the fluid level without
driving to obtain a normal
operating temperature if the
outside temperature is above 10ÉC
(50ÉF).
If the vehicle has been operated
for an extended period at high
speeds, in city traffic during hot
weather or pulling a trailer, the
vehicle should be turned off for
about 30 minutes to allow the fluid
to cool before checking.
1. Park the vehicle on a level
surface.
2. Start the engine and move the
gearshift lever through all of the
gear ranges. Allow sufficient time
for each gear to change.
3. Latch the gearshift lever in
P(Park), set the parking brake and
leave the engine running.
4. Remove the dipstick, wiping it
clean with a clean, dry rag.
5. Install the dipstick.
P R N D 2 1
Maintenance and care
150

the electrolyte level and adding
water. Check the electrolyte level
every 24 months or 40,000 km
(24,000 miles) in average
temperatures 32ÉC (90ÉF). Keep
the electrolyte level in each cell up
to the level indicator. Do not
overfill.
If the level gets low, refill the
battery with distilled water. If
necessary, distilled water may be
substituted with tap water that is
not hard and does not have a high
mineral or alkali content. If the
battery needs water quite often,
have the charging system checked
for a possible malfunction.
Your vehicle is equipped with a
battery saver control feature
designed to prevent your battery
from accidental wear down due to
doors left ajar. For information on
the system and how it works, see
Interior overhead lampin the
Controls and featureschapter.
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 computer must
ªrelearnº its idle conditions before
your vehicle will drive properly. To
begin this process:
1. Put the gearshift in P (Park).
2. Turn off all accessories, and
start the vehicle.
Maintenance and care
154

3. Let the engine idle for at least
one minute.
4. The relearning process will
automatically complete as you
drive the vehicle.
²If you do not allow the engine to
relearn its idle, the idle quality
of your vehicle may be adversely
affected until the idle is
eventually relearned.
²If the battery has been
disconnected or a new battery
has been installed, the clock and
preset radio stations must be
reset once the battery is
reconnected.
²Always dispose of used
automotive batteries in a
responsible manner. Follow your
community's standards for
disposal. Call your local
recycling center to find out
more about recycling automotive
batteries.
Maintenance and care
155

Changing your air filter
1. Loosen the clamp that secures
the air cleaner in place. Separate
the two halves of the air cleaner.
2. Remove the air filter element
from the open end of the engine
air cleaner and replace it with a
new element.
3. Replace the two halves of the
air cleaner and secure the clamp.
CHECKING AND CHANGING
WIPER BLADES
Check the windshield wiper blades
at least twice a year or whenever
the wipers seem less effective than
usual. Substances such as tree sap
and some hot wax treatments used
by commercial car washes can
reduce the effectiveness of wiper
blades.
Maintenance and care
156

of disulfiram for the treatment of
alcoholism. Breathing gasoline
vapors or skin contact could
possibly cause an adverse reaction.
Consult a physician immediately.
Cleaner air
Ford approves the use of gasolines
to improve air quality, including
reformulated gasolines, that
contain oxygenates such as a
maximum of 10% ethanol or 15%
MTBE. There should be no more
than 5% methanol with cosolvents.
Octane recommendations
Your vehicle is designed to use
regular gasoline with an (R+M)/2
octane rating of 87. We do not
recommend gasolines labeled as
9regular9in high altitude areas that
are sold with octane ratings of 86
or even less.
Do not be concerned if your
vehicle sometimes knocks lightly.
However, if it knocks heavily under
most driving conditions on the
recommended octane fuel, see
your dealer or a qualified service
technician to prevent any engine
damage.
Fuel quality
If you are experiencing starting,
rough idle or hesitation problems
try a different brand of fuel. If the
condition persists, see your dealer
or a qualified service technician.
The American Automobile
Manufacturers Association (AAMA)
87
Maintenance and care
166

issued a gasoline specificaton to
provide information on high quality
fuels that optimize the
performance of your vehicle. We
recommend the use of gasolines
that meet the AAMA specification
if they are available.
It should not be necessary to add
any aftermarket products to your
fuel tank if you continue to use a
high-quality fuel.
Choosing the right fuel
Use only UNLEADED FUEL. The
use of leaded fuel is prohibited by
law and could damage your
vehicle. The damage may not be
covered by your warranty.
Your vehicle was not designed to
use fuel containing
manganese-based additives such as
MMT. Additionally, vehicles
certified to California emission
standards (indicated on the
underhood Vehicle Emissions
Control Information label) are
designed to operate on California
reformulated gasolines. If
California reformulated gasoline is
not available when you refuel, your
vehicle can be operated on
non-California fuels. However, even
though your engine will perform
adequately on other gasolines, the
performance of the emission
control devices and systems may
be adversely affected. Repair of
damage caused by using a fuel that
your vehicle was not designed for
may not be covered by your
warranty.
Maintenance and care
167

your vehicle to comply with
applicable exhaust emission
requirements. For more
information on your vehicle's
emission control system, see the
Vehicle Emission Control
Information decal located on the
left side of the engine
compartment.
Follow these guidelines to ensure
proper emission system operation:
²Use only unleaded fuel.
²Avoid running out of fuel.
²Do not turn off the ignition
while your vehicle is in motion.
²Have the services performed
according to the intervals in the
Service Guide.
When servicing your vehicle, never
use a metal exhaust collector. A
metal collector may melt or deform
plastic parts.
Do not park, idle, or drive
your vehicle in dry grass
or other dry ground cover. The
emission system heats up the
engine compartment and exhaust
system, which can start a fire.
On vehicles without
original equipment floor
covering or insulation, do not let
passengers ride in your truck in
a manner that allows contact
between skin and the metal floor.
Maintenance and care
169

If you notice one or more of the
following, the emission system may
not be working properly. Have the
vehicle serviced as soon as
possible.
²Fluid leaks.
²The
andCHECK
ENGINElights
illuminate in the instrument
cluster and remain lit.
²Strange odors.
²Engine runs more than five
seconds after shut-off or engine
misfires, surges, stalls or
backfires.
²Loss of oil pressure.
When servicing your vehicle, never
use a metal exhaust collector. A
metal collector may heat or deform
plastic parts.
Important emission control
information
By law, anyone who manufactures,
repairs, services, sells, leases,
trades vehicles, or supervises a
fleet of vehicles is not permitted to
intentionally remove an emission
control device or prevent it from
working.
Do not make any unauthorized
changes to the vehicle or engine.
Changes that cause more
unburned fuel to reach the exhaust
system can increase the
temperature of the engine or
exhaust system.
Maintenance and care
170

Preparing your vehicle for
inspection/maintenance testing
In some localities it may become a
legal requirement to pass an
Inspection/Maintenance test of the
On-Board Diagnostic (OBD II)
system. If the vehicle's powertrain
system or battery has just been
serviced, the OBD II system is
reset to a not ready for I/M testing
condition. To ready the OBD II
system for I/M testing, the law
specifies that additional mixed city
and highway driving is necessary
to complete the check of the OBD
II system.
The driving modes required to
reach the ready condition consist
of a minimum of 30 minutes of city
and highway driving as described
below:
²20 minutes of driving in stop
and go city-type traffic with at
least four idle periods.
²10 minutes of driving on an
expressway or highway.
Before completing the above
driving modes, the engine must be
warmed up and at operating
temperature. Once started, the
vehicle must not be turned off
during the above driving modes. If
the vehicle owner is unable to
meet the I/M requirements by
using these driving patterns, an
authorized service center can
perform a detailed OBD II Drive
Cycle as it would any other type of
repair work.
Maintenance and care
171

Cleaning the engine
A clean engine is more efficient
than a dirty one because a buildup
of grease and dirt acts as an
insulator and keeps the engine
warmer than normal. Follow these
guidelines to clean your engine:
²Take care when using a power
washer to clean the engine. The
high pressure fluid could
penetrate the sealed parts and
cause damage.
²In order to avoid cracking the
engine block, do not spray with
cold water.
²The alternator, ignition coil
packs, and air intake must be
covered to prevent water
damage when cleaning the
engine.
²Never wash or rinse the engine
while it is running; water in the
running engine may cause
internal damage.
Cleaning the wiper blades
If the wiper blades do not wipe
properly, clean both the windshield
and the wiper blades using
undiluted windshield washer
solution or a mild detergent. Rinse
thoroughly with clean water. Do
not use fuel, kerosene, paint
thinner, or other solvents to clean
your wiper blades; these fluids will
damage your blades.
Maintenance and care
183