2008 Mercury Mariner ignition

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
17 40A** Cooling fan 2
18 20A** ABS solenoid
19 30A** Power seats
20 — A/C clutch relay
21A — Rear defroster relay
21B — Not used
21C — Blower relay
21D — PCM relay
22 — Not used
23 — Not used
24 10A* PCM transmission
25 — Not used
26 10A* PCM mil
27 10A* PCM non-mil
28 15A* PCM
29 15A* Ignition coils
30A — Cooling fan 1 relay
30B — Starter relay
30C — Cooling fan main relay
30D — Cooling fan 2 relay
31A — Reverse lamp relay
31B — Fuel pump relay
31C — Trailer tow left turn relay
31D — Trailer tow right turn relay
31E — Trailer tow park relay
31F — Not used
32 — Not used
33 — PCM diode
34 — Start diode
35 10A* Reverse lamp relay, Speed control
module, Rear defrost relay
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
217

Refueling
Fuel vapor burns violently and a fuel fire can cause severe
injuries. To help avoid injuries to you and others:
•Read and follow all the instructions on the pump island;
•Turn off your engine when you are refueling;
•Do not smoke if you are near fuel or refueling your vehicle;
•Keep sparks, flames and smoking materials away from fuel;
•Stay outside your vehicle and do not leave the fuel pump unattended
when refueling your vehicle — this is against the law in some places;
•Keep children away from the fuel pump; never let children pump
fuel.
Use the following guidelines to avoid electrostatic charge build-up when
filling an ungrounded fuel container:
•Place approved fuel container on the ground.
•DO NOT fill a fuel container while it is in the vehicle (including the
cargo area).
•Keep the fuel pump nozzle in contact with the fuel container while
filling.
•DO NOT use a device that would hold the fuel pump handle in the fill
position.
Fuel Filler Cap
Your fuel tank filler cap has an indexed design with a 1/4 turn on/off
feature.
When fueling your vehicle:
1. Turn the engine/ignition switch to the off position.
2. Carefully turn the filler cap counterclockwise until it spins off.
3. To install the cap, align the lugs on the cap with the threads on the
filler pipe.
4. Turn the filler cap clockwise until it clicks at least once.
If the check fuel cap light
or a “check fuel cap” message comes on,
the fuel filler cap may not be properly installed. The light or message can
come on after several driving events after you’ve refueled your vehicle.
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Maintenance and Specifications
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If you have run out of fuel:
•You may need to cycle the ignition from OFF to ON several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal.
•Normally, adding 1 gallon (3.8L) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
1 gallon (3.8L) may be required.
•TheService engine soon
indicator may come on. For more
information on theService engine soon
indicator, refer to
Warning lights and chimesin theInstrument Clusterchapter.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles (1,600 km)
of driving (engine break-in period). You will get a more accurate
measurement after 2,000 miles–3,000 miles (3,000 km–5,000 km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
product specifications and capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
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Maintenance and Specifications
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•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.
•Transmissions give their best fuel economy when operated in the top
cruise gear and with steady pressure on the gas pedal.
•Close windows for high speed driving.
EPA window sticker
Every new vehicle should have the EPA window sticker. Contact your
authorized dealer if the window sticker is not supplied with your vehicle.
The EPA window sticker should be your guide for the fuel economy
comparisons with other vehicles.
It is important to note the box in the lower left corner of the window
sticker. These numbers represent the Range of MPG (L/100 km)
expected on the vehicle under optimum conditions. Your fuel economy
may vary depending upon the method of operation and conditions.
EMISSION CONTROL SYSTEM
Your vehicle is equipped with various emission control components and a
catalytic converter which will enable your vehicle to comply with
applicable exhaust emission standards. To make sure that the catalytic
converter and other emission control components continue to work
properly:
•Use only the specified fuel listed.
•Avoid running out of fuel.
•Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
•Have the items listed inscheduled maintenance information
performed according to the specified schedule.
The scheduled maintenance items listed inscheduled maintenance
informationare essential to the life and performance of your vehicle
and to its emissions system.
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.
2008 Mariner(mrn)
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Maintenance and Specifications
278

4. Driving through deep water—the electrical system may be wet.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel, properly tightening the fuel cap or letting the
electrical system dry out. After three driving cycles without these or any
other temporary malfunctions present, theService engine soon
indicator should stay off the next time the engine is started. A driving
cycle consists of a cold engine startup followed by mixed city/highway
driving. No additional vehicle service is required.
If theService engine soon
indicator remains on, have your vehicle
serviced at the first available opportunity. Although some malfunctions
detected by the OBD-II may not have symptoms that are apparent,
continued driving with theService engine soon
indicator on can
result in increased emissions, lower fuel economy, reduced engine and
transmission smoothness, and lead to more costly repairs.
Readiness for Inspection/Maintenance (I/M) testing
Some state/provincial and local governments may have
Inspection/Maintenance (I/M) programs to inspect the emission control
equipment on your vehicle. Failure to pass this inspection could prevent
you from getting a vehicle registration. Your vehicle may not pass the I/M
test if theService engine soon
indicator is on or not working
properly (bulb is burned out), or if the OBD-II system has determined
that some of the emission control systems have not been properly
checked. In this case, the vehicle is considered not ready for I/M testing.
If theService engine soon
indicator is on or the bulb does not
work, the vehicle may need to be serviced. Refer to the On board
diagnostics (OBD-II) description in this chapter.
If the vehicle’s engine or transmission has just been serviced, or the
battery has recently run down or been replaced, the OBD-II system may
indicate that the vehicle is not ready for I/M testing. To determine if the
vehicle is ready for I/M testing, turn the ignition key to the ON position
for 15 seconds without cranking the engine. If theService engine
soon
indicator blinks eight times, it means that the vehicle is not
ready for I/M testing; if theService engine soon
indicator stays on
solid, it means that the vehicle is ready for I/M testing.
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
280

ENGINE DATA
Engine 2.3L I4 engine 3.0L DOHC V6
Duratec engine
Cubic inches 140 183
Required fuel 87 octane 87 octane
Firing order 1-3-4-2 1-4-2-5-3-6
Ignition system Coil on plug Coil on plug
Spark plug gap 0.049–0.053 inch
(1.25–1.35mm)0.052–0.056 inch
(1.32–1.42mm)
Compression ratio 9.7:1 10.0:1
Engine drivebelt routing
•2.3L I4 Engine with A/C—Without A/C similar
•3.0L V6 Engine
2008 Mariner(mrn)
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Maintenance and Specifications
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recommendations ...................261
refill capacities ........................286
specifications ..........................286
Event data recording ....................7
Exhaust fumes ..........................184
F
Fail safe cooling ........................269
Fluid capacities .........................286
Foglamps .....................................42
Four-Wheel Drive vehicles
driving off road .......................201
preparing to drive your
vehicle .....................................194
Fuel ............................................270
calculating fuel
economy ............................67, 275
cap ...........................................272
capacity ...................................286
choosing the right fuel ...........273
comparisons with EPA
fuel economy estimates .........278
detergent in fuel .....................274
filling your vehicle
with fuel ..................270, 272, 275
filter, specifications ........270, 285
fuel pump shut-off switch .....211
improving fuel economy ........275
octane rating ...................274, 288
quality ......................................274
running out of fuel .................274
safety information relating
to automotive fuels ................270
Fuses ..................................211–212
G
Gas cap (see Fuel cap) ............272Gas mileage
(see Fuel economy) .................275
Gauges .........................................17
H
Hazard flashers .........................210
Head restraints .....................95, 99
Headlamps ...................................41
aiming ........................................44
bulb specifications ....................47
flash to pass ..............................43
high beam .................................43
replacing bulbs .........................48
turning on and off ....................41
Heating
heating and air conditioning
system .......................................37
manual heating and air
conditioning system .................34
Hood ..........................................253
I
Ignition ...............................181, 288
Illuminated visor mirror .............54
Infant seats
(see Safety seats) .....................137
Inspection/maintenance
(I/M) testing ..............................280
Instrument panel
cleaning ...................................248
cluster ........................................12
lighting up panel and
interior .......................................43
J
Jump-starting your vehicle ......229
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
295

K
Keyless entry system .................89
autolock ...............................80, 82
keypad .......................................90
locking and unlocking doors ....91
programming entry code .........90
Keys .......................................78, 92
positions of the ignition .........181
L
Lamps
bulb replacement
specifications chart ..................47
fog lamps ...................................42
headlamps .................................41
headlamps, flash to pass ..........43
instrument panel, dimming .....43
interior lamps .....................45–47
replacing bulbs .........................48
Liftgate ..................................73, 86
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........187
Load limits .................................169
Loading instructions .................175
Locks
autolock ...............................80, 82
childproof ..................................84
doors ..........................................80
Lubricant specifications ...........286
Lug nuts ....................................228
Luggage rack ...............................75
Lumbar support, seats ...............97
M
Message center ...........................66
english/metric button ...............70system check button ................69
warning messages .....................71
Mirrors ...................................58, 60
automatic dimming
rearview mirror .........................58
fold away ...................................61
heated ........................................61
side view mirrors (power) .......60
Moon roof ....................................65
Motorcraft parts ........250, 270, 285
N
Navigation system .......................33
O
Octane rating ............................274
Oil (see Engine oil) ..................258
Overdrive ...................................196
P
Parking brake ............................188
Parts (see Motorcraft parts) ....285
Passenger Occupant
Classification Sensor .................106
Power distribution box
(see Fuses) ...............................215
Power door locks ........................80
Power mirrors .............................60
Power point .................................56
Power steering ..........................193
fluid, refill capacity ................286
fluid, specifications .................286
Power Windows ...........................57
2008 Mariner(mrn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
296