2005 Mercury Mountaineer check engine light

•Refer to the chart on the coolant container to ensure the
coolant concentration in your vehicle will provide adequate
protection at the temperatures in which you drive.
Vehicles driven year-round in non-extreme climates should use a 50/50
mixture of engine coolant and distilled water for optimum cooling system
and engine protection.
What you should know about fail-safe cooling (4.6L V8 engine
only)
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The “fail-safe” distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the red (hot)
area.
•HIGH TEMP LOW OIL (if equipped) or CHECK GAUGE (if equipped)
will illuminate.
•TheService engine soonindicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature:
•The engine will completely shut down.
•Steering and braking effort will increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to a service facility as soon as possible to minimize engine
damage.
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•Sudden or hard accelerations may reduce fuel economy.
•Slow down gradually.
•Driving at reasonable speeds (traveling at 55 mph [88 km/h] uses 15%
less fuel than traveling at 65 mph [105 km/h]).
•Revving the engine before turning it off may reduce fuel economy.
•Using the air conditioner or defroster may reduce fuel economy.
•You may want to turn off the speed control in hilly terrain if
unnecessary shifting between third and fourth gear occurs.
Unnecessary shifting of this type could result in reduced fuel
economy.
•Warming up a vehicle on cold mornings is not required and may
reduce fuel economy.
•Resting your foot on the brake pedal while driving may reduce fuel
economy.
•Combine errands and minimize stop-and-go driving.
Maintenance
•Keep tires properly inflated and use only recommended size.
•Operating a vehicle with the wheels out of alignment will reduce fuel
economy.
•Use recommended engine oil. Refer toLubricant specificationsin
this chapter.
•Perform all regularly scheduled maintenance items. Follow the
recommended maintenance schedule and owner maintenance checks
found inscheduled maintenance information.
Conditions
•Heavily loading a vehicle or towing a trailer may reduce fuel economy
at any speed.
•Carrying unnecessary weight may reduce fuel economy (approximately
1 mpg [0.4 km/L] is lost for every 400 lb [180 kg] of weight carried).
•Adding certain accessories to your vehicle (for example bug
deflectors, rollbars/light bars, running boards, ski/luggage racks) may
reduce fuel economy.
•Fuel economy may decrease with lower temperatures during the first
8–10 miles (12–16 km) of driving.
•Driving on flat terrain offers improved fuel economy as compared to
driving on hilly terrain.
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If other than Ford, Motorcraft or Ford-authorized parts are used for
maintenance replacements or for service of components affecting
emission control, such non-Ford parts should be equivalent to genuine
Ford Motor Company parts in performance and durability.
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.
Illumination of the “Check Engine” light, charging system warning light
or the temperature warning light, fluid leaks, strange odors, smoke or
loss of engine power, could indicate that the emission control system is
not working properly.
Exhaust leaks may result in entry of harmful and potentially
lethal fumes into the passenger compartment.
Do not make any unauthorized changes to your vehicle or engine. By
law, vehicle owners and anyone who manufactures, repairs, services,
sells, leases, trades vehicles, or supervises a fleet of vehicles are not
permitted to intentionally remove an emission control device or prevent
it from working. Information about your vehicle’s emission system is on
the Vehicle Emission Control Information Decal located on or near the
engine. This decal identifies engine displacement and gives some tune up
specifications.
Please consult yourWarranty Guidefor complete emission warranty
information.
On board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the On
Board Diagnostics System (OBD-II). This OBD-II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists the
service technician in properly servicing your vehicle. When theCheck
engine/Service engine soonlight illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
engine/Service engine soonlight to illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
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3. The fuel cap may not have been securely tightened. SeeFuel filler
capin this chapter.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheck engine/Service engine soonlight should turn off. (A
driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheck engine/Service engine soonlight remains on, have your
vehicle serviced at the first available opportunity.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If yourCheck engine/Service engine
soonlight is on, refer to the description in theWarning lights and
chimessection of theInstrument Clusterchapter. Your vehicle may not
pass the I/M test with theCheck engine/Service engine soonlight on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a “not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
POWER STEERING FLUID
Check the power steering fluid. Refer to the scheduled maintenance
guide for the service interval schedules. If adding fluid is necessary, use
only MERCON
AT F.
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A
Accessory delay ..........................62
AdvanceTrac ..............................201
Air cleaner filter ...............284–286
Air conditioning ..........................39
Airbag supplemental
restraint system ........130–131, 135
and child safety seats ............132
description ......................131, 135
disposal ....................................138
driver airbag ....................133, 136
indicator light .................135, 137
operation .........................133, 136
passenger airbag .............133, 136
All Wheel Drive (AWD),
driving off road .........................211
Ambulance packages ....................7
Antifreeze
(see Engine coolant) ................265
Anti-lock brake system
(see Brakes) ..............................199
Audio system
(see Radio) ................18, 21, 25, 30
Automatic transmission
driving an automatic
overdrive .................................207
fluid, adding ............................284
fluid, checking ........................284
fluid, refill capacities ..............287
fluid, specification ..................292
Auxiliary power point .................60
Axle
lubricant
specifications ..................290, 292
refill capacities ........................287
B
Battery .......................................263acid, treating emergencies .....263
jumping a disabled battery ....231
maintenance-free ....................263
replacement, specifications ...286
servicing ..................................263
BeltMinder .................................126
Brakes ........................................198
anti-lock ...................................199
anti-lock brake system
(ABS) warning light ...............199
fluid, checking and adding ....284
fluid, refill capacities ..............287
fluid, specifications .........290, 292
lubricant specifications ..290, 292
parking ....................................200
shift interlock ..........................205
C
Calculating load ........................189
Capacities for refilling fluids ....287
Cargo cover .................................89
Cell phone use ............................57
Changing a tire .........................159
Child safety restraints ..............139
child safety belts ....................139
Child safety seats ......................141
attaching with tether straps ..145
in front seat ............................143
in rear seat ..............................143
Cleaning your vehicle
engine compartment ..............248
instrument panel ....................250
interior .....................................251
interior trim ............................251
plastic parts ............................250
safety belts ..............................251
washing ....................................247
waxing .....................................247
Index
298

service points ..................255–256
starting after a collision .........220
Engine block heater .................198
Engine oil ..................................258
checking and adding ..............258
dipstick ....................................258
filter, specifications ........261, 286
recommendations ...................261
refill capacities ........................287
specifications ..................290, 292
Exhaust fumes ..........................198
F
Fail safe cooling ........................270
Floor mats ...................................88
Fluid capacities .........................287
Foglamps .....................................44
Four-Wheel Drive vehicles
driving off road .......................211
preparing to drive your
vehicle .....................................204
Fuel ............................................271
calculating fuel
economy ............................78, 277
cap ...........................................276
capacity ...................................287
choosing the right fuel ...........273
comparisons with EPA fuel
economy estimates .................280
detergent in fuel .....................275
filling your vehicle
with fuel ..................271, 276–277
filter, specifications ........276, 286
fuel pump shut-off switch .....220
improving fuel economy ........277
octane rating ...................274, 292
quality ......................................274
running out of fuel .................275safety information relating
to automotive fuels ................271
Fuel - flex fuel vehicle
(FFV) .................................273–274
Fuses ..................................221, 223
G
Garage door opener ....................59
Garage Door Opener
(see Homelink wireless
control system) ...........................69
Gas cap (see Fuel cap) ............276
Gas mileage
(see Fuel economy) .................277
Gauges .........................................14
GAWR (Gross Axle
Weight Rating)
calculating ...............................189
GVWR (Gross Vehicle
Weight Rating)
calculating ...............................189
H
Hazard flashers .........................220
Head restraints .........................105
Headlamps
aiming ........................................46
bulb specifications ....................48
daytime running lights .............44
flash to pass ..............................45
high beam .................................45
Heating
heating and air conditioning
system .................................37, 39
Homelink wireless control
system ..........................................69
Hood ..........................................254
Index
300

I
Ignition ...............................195, 292
Infant seats
(see Safety seats) .....................141
Inspection/maintenance
(I/M) testing ..............................282
Instrument panel
cleaning ...................................250
cluster ........................................10
J
Jack ....................................159, 162
positioning .......................159, 164
storage .............................159, 162
Jump-starting your vehicle ......231
K
Keyless entry system .................98
autolock ...................................100
Keys
positions of the ignition .........195
L
Lamps
bulb replacement
specifications chart ..................48
daytime running light ...............44
fog lamps ...................................44
instrument panel, dimming .....45
interior lamps ...........................47
replacing bulbs .........................52
Liftgate ..................................88, 95
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........199
Limited-slip axle .......................211
Load limits .................................182Loading instructions .................189
Locks
autolock ...................................100
childproof ..................................93
doors ..........................................92
Lubricant specifications ...290, 292
Lug nuts ....................................167
Luggage rack ...............................90
Lumbar support,
seats ...........................107, 109–110
M
Manual transmission
lubricant specifications ..........292
Message center .....................75–76
english/metric button ...............81
system check button ................80
warning messages .....................82
Mirrors ...................................60, 63
automatic dimming rearview
mirror ........................................63
fold away ...................................63
heated ........................................62
side view mirrors (power) .......62
Moon roof ....................................68
Motorcraft parts ................276, 286
O
Octane rating ............................274
Oil (see Engine oil) ..................258
P
Parking brake ............................200
Parts (see Motorcraft parts) ....286
Index
301