2003 Mercury Mountaineer coolant temperature

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.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to a service facility.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
Never remove the coolant reservoir cap while the engine is
running or hot.
5. Restart the engine and take your vehicle to a service facility.
Driving the vehicle without repairing the engine problem
increases the chance of engine damage. Take your vehicle to a
service facility as soon as possible.
Maintenance and Specifications
224

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.
CHECKING AND ADDING 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 MERCONAT F.
•4.0L SOHC V6 engine
•4.6L V8 engine
1. Start the engine and let it run until it reaches normal operating
temperature (the engine coolant temperature gauge indicator will be
near the center of the normal area between H and C).
2. While the engine idles, turn the steering wheel left and right several
times.
Maintenance and Specifications
236

plastic parts ............................203
safety belts ..............................204
washing ....................................200
waxing .....................................200
wheels ......................................201
wiper blades ............................203
Climate control (see Air
conditioning or Heating) ............32
Compass, electronic ....................66
calibration .................................67
set zone adjustment ...........66, 69
Console ........................................50
overhead ....................................51
rear ......................................51, 54
Controls
power seat .................................99
steering column ........................60
Coolant
checking and adding ..............219
refill capacities ................223, 244
specifications ..................246, 248
Cruise control
(see Speed control) ....................56
Customer Assistance ................163
Ford accessories for your
vehicle .....................................205
Ford Extended Service
Plan ..........................................192
Getting assistance outside
the U.S. and Canada ..............196
Getting roadside assistance ...163
Getting the service you
need .........................................190
Ordering additional owner’s
literature .................................197
The Dispute Settlement
Board .......................................193
Utilizing the
Mediation/Arbitration
Program ...................................196D
Daytime running lamps
(see Lamps) ................................37
Defrost
rear window ..............................36
Dipstick
automatic transmission
fluid ..........................................237
engine oil .................................212
Doors
lubricant specifications ..........246
Driveline universal joint and
slip yoke ....................................238
Driving under special
conditions ..................................152
through water .........................155
Dual automatic temperature
control (DATC) ...........................32
E
Electronic message center .........68
Emergencies, roadside
jump-starting ..........................183
Emergency Flashers .................164
Emission control system ..........234
Engine ................................248–249
cleaning ...................................201
coolant .....................................219
fail-safe coolant ......................223
idle speed control ...................217
lubrication
specifications ..................246, 248
refill capacities ........................244
service points ..................209–210
starting after a collision .........165
Engine block heater .................145
Index
257