Page 276 of 304

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 off.
2. Carefully turn the filler cap counterclockwise 1/4 of a turn until it
stops.
3. Pull to remove the cap from the fuel filler pipe.
4. To install the cap, align the tabs on the cap with the notches on the
filler pipe.
5. Turn the filler cap clockwise 1/4 of a turn until it clicks at least once.
If the “Check Fuel Cap” indicator comes on and stays on after you start
the engine, the fuel filler cap may not be properly installed. Turn off the
engine, remove the fuel filler cap, align the cap properly and reinstall it.
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraft fuel filler cap is not used.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive pressure or
vacuum in the fuel tank may damage the fuel system or cause
the fuel cap to disengage in a collision, which may result in possible
personal injury.
Fuel Filter
For fuel filter replacement, see your dealer or a qualified service
technician. Refer toscheduled maintenance informationfor the
appropriate intervals for changing the fuel filter.
Replace the fuel filter with an authorized Motorcraft part. The
customer warranty may be void for any damage to the fuel system
if an authorized Motorcraft fuel filter is not used.
2005 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
276
Page 300 of 304

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
Page 301 of 304

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