2003 FORD RANGER suspension

Always set the parking brake fully and make sure that the
gearshift is securely latched in P (Park) (automatic
transmission) or in 1 (First) (manual transmission).
STEERING
To prevent damage to the power steering system:
•Never hold the steering wheel at its furthest turning points (until it
stops) for more than a few seconds when the engine is running.
•Do not operate the vehicle with a low power steering pump fluid level
(below the MIN mark on the reservoir).
If the power steering system breaks down (or if the engine is turned
off), you can steer the vehicle manually, but it takes more effort.
If the steering wanders or pulls, check for:
•an underinflated tire
•uneven tire wear
•loose or worn suspension components
•loose or worn steering components
•improper steering alignment
TRACTION-LOK AXLE (IF EQUIPPED)
This axle provides added traction on slippery surfaces, particularly when
one wheel is on a poor traction surface. Under normal conditions, the
Traction-Lok axle functions like a standard rear axle.
To reduce the risk of injury, never run the engine with one wheel
off the ground, such as when changing a tire.
PREPARING TO DRIVE YOUR VEHICLE
Utility vehicles have a significantly higher rollover rate than
other types of vehicles.
In a rollover crash, an unbelted person is significantly more likely
to die than a person wearing a safety belt.
Your vehicle has larger tires and increased ground clearance, giving the
vehicle a higher center of gravity than a passenger car.
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114

Never drive with chains on the front tires of 4WD vehicles without also
putting them on the rear tires. This could cause the rear to slide and
swing around during braking.
Tires, Replacement Requirements
Do not use a size and type of tire and wheel other than that
originally provided by Ford Motor Company because it can affect
the safety and performance of your vehicle, which could result in an
increased risk of loss of vehicle control, vehicle rollover, and/or serious
personal injury or death.
Make sure all tires and wheels on the vehicle are of the same size, type,
tread design, brand and load-carrying capacity. If you have questions
regarding tire replacement, see an authorized Ford or Lincoln/Mercury
dealer.
If you nevertheless decide to equip your 4WD for off-road use with tires
larger than what Ford Motor Company recommends, you should not use
these tires for highway driving.
If you use any tire/wheel combination not recommended by Ford Motor
Company, it may adversely affect vehicle handling and could cause
steering, suspension, axle or transfer case failure.
Do not use“aftermarket lift kits”or other suspension modifications,
whether or not they are used with larger tires and wheels.
These“aftermarket lift kits”could adversely affect the vehicle’s handling
characteristics, which could lead to loss of vehicle control or rollover and
serious injury.
Tires can be damaged during off-road use. For your safety, tires that are
damaged should not be used for highway driving because they are more
likely to blow out or fail.
You should carefully observe the recommended tire inflation pressure
found on the safety compliance certification label attached to the left
front door lock facing or door latch post pillar. Failure to follow tire
pressure recommendations can adversely affect the way your vehicle
handles. Do not exceed the Ford Motor Company recommended pressure
even if it is less than the maximum pressure allowed for the tire.
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130

Each day before you drive, check
your tires. If one looks lower than
the others, use a tire gauge to check
pressure of all tires, and adjust if
required. Check tire pressure with a
tire gauge every few weeks
(including spare). Safe operation
requires tires that are neither
underinflated nor a vehicle which is
overloaded.
Periodically inspect the tire treads and remove stones, nails, glass or
other objects that may be wedged in the tread grooves. Check for holes
or cuts that may permit air leakage from the tire and make necessary
repairs.
Inspect the tire side walls for cuts, bruises and other damage. If internal
damage to the tire is suspected, have the tire demounted and inspected
in case it needs to be repaired or replaced.
Maintenance and Modifications
The suspension and steering systems on your vehicle have been designed
and tested to provide both reliable and reasonably predictable
performance whether loaded or empty and durable load carrying
capability. For this reason, Ford Motor Company strongly recommends
that you do not make modifications such as adding or removing parts
(such as lift kits or stabilizer bars) or by using replacement parts not
equivalent to the original factory equipment.
Any modifications to a vehicle that raise the center of gravity can make
it more likely the vehicle will roll over as a result of a loss of control.
Ford Motor Company recommends that caution be used with any vehicle
equipped with a high load or device (such as ladder racks or pickup box
cover).
Failure to maintain your vehicle properly may void the warranty, increase
your repair cost, reduce vehicle performance and operational capabilities
and adversely affect driver and passenger safety. Frequent inspection of
vehicle chassis components is recommended if the vehicle is subjected to
heavy off-road usage.
DRIVING THROUGH WATER
If driving through deep or standing water is unavoidable, proceed very
slowly especially if the depth is not known. Never drive through water
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131

Calculating the load your vehicle can carry/tow
1. Use the appropriate maximum GCWR chart (in theTrailer Towing
section in this chapter) for your type of engine and rear axle ratio.
2. Weigh your vehicle without cargo. To obtain correct weights, take your
vehicle to a shipping company or an inspection station for trucks.
3. Subtract your loaded weight from the maximum GCWR in the chart.
This is the maximum trailer weight your vehicle can tow. It must be
below the maximum trailer weight shown in the chart.
TRAILER TOWING
Your vehicle may tow a class I, II or III trailer provided the maximum
trailer weight is less than or equal to the maximum trailer weight listed
for your engine and rear axle ratio on the following charts.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
4x2 w/manual transmission
Engine Rear
axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal
area of
trailer - m
2
(ft2)
Regular Cab w/6’box
2.3L All 2177 (4800) 753 (1660) Equal to
frontal area
of vehicle
3.0L
(non-torsion
bar
suspension)All 2722 (6000) 1207 (2660) 4.64 (50)
3.0L
(torsion bar
suspension)All 2722 (6000) 1152 (2540) 4.64 (50)
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134

4x2 w/manual transmission
Engine Rear
axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal
area of
trailer - m
2
(ft2)
4.0L
(non-torsion
bar
suspension)All 3175 (7000) 1624 (3580) 4.64 (50)
4.0L
(torsion bar
suspension)All 3175 (7000) 1569 (3460) 4.64 (50)
Regular Cab w/7’box
2.3L All 2177 (4800) 726 (1600) Equal to
frontal area
of vehicle
3.0L All 2722 (6000) 1179 (2600) 4.64 (50)
4.0L All 3175 (7000) 1597 (3520) 4.64 (50)
SuperCab
2.3L All 2177 (4800) 671 (1480) Equal to
frontal area
of vehicle
3.0L
(non-torsion
bar
suspension)All 2722 (6000) 1125 (2480) 4.64 (50)
3.0L
(torsion bar
suspension)All 2722 (6000) 1052 (2320) 4.64 (50)
4.0L
(non-torsion
bar
suspension)All 3175 (7000) 1542 (3400) 4.64 (50)
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135

4x2 w/manual transmission
Engine Rear
axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal
area of
trailer - m
2
(ft2)
4.0L
(torsion bar
suspension)All 3175 (7000) 1479 (3260) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1000
ft.) elevation.
For definition of terms used in this table seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the load your vehicle can carry/towearlier
in this chapter.
Maximum trailer weight is shown. The combined weight of the
completed towing vehicle (including hitch, passengers and cargo) and
the loaded trailer must not exceed the Gross Combined Weight Rating
(GCWR).
4x4 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs)Maximum
frontal area
of trailer -
m
2(ft2)
Regular Cab w/6’box
3.0L All 2722 (6000) 1180 (2380) 4.64 (50)
4.0L All 3175 (7000) 1506 (3320) 4.64 (50)
Regular Cab w/7’box
3.0L All 2722 (6000) 1061 (2340) 4.64 (50)
4.0L All 3175 (7000) 1479 (3260) 4.64 (50)
SuperCab
3.0L All 2722 (6000) 1007 (2220) 4.64 (50)
4.0L All 3175 (7000) 1424 (3140) 4.64 (50)
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136

4x4 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs)Maximum
frontal area
of trailer -
m
2(ft2)
4.0L
(FX4
package)All 3175 (7000) 1234 (2720) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters (1000
ft.) of elevation.
For definition of terms used in this table, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/towearlier in this
chapter.
Maximum trailer weight is shown. The combined weight of the
completed towing vehicle (including hitch, passengers and cargo) and
the loaded trailer must not exceed the Gross Combined Weight Rating
(GCWR).
4x2 w/automatic transmission
Engine Rear
axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal
area of
trailer - m
2
(ft2)
Regular Cab w/6’box
2.3L All 2495 (5500) 1025 (2260) Equal to
frontal area
of vehicle
3.0L
(non-torsion
bar
suspensionAll 3402 (7500) 1869 (4120) 4.64 (50)
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137

4x2 w/automatic transmission
Engine Rear
axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
trailer
weight - kg
(lbs.)Maximum
frontal
area of
trailer - m
2
(ft2)
3.0L
(torsion bar
suspension)All 3402 (7500) 1814 (4000) 4.64 (50)
4.0L
(non-torsion
bar
suspension)All 4309 (9500) 2740 (6040) 4.64 (50)
4.0L
(torsion bar
suspension)All 4309 (9500) 2685 (5920) 4.64 (50)
Regular Cab w/7’box
2.3L All 2495 (5500) 1007 (2220) Equal to
frontal area
of vehicle
3.0L All 3402 (7500) 1842 (4060) 4.64 (50)
4.0L All 4309 (9500) 2712 (5980) 4.64 (50)
SuperCab
3.0L
(non-torsion
bar
suspension)All 3402 (7500) 1787 (3940) 4.64 (50)
3.0L
(torsion bar
suspension)All 3402 (7500) 1715 (3780) 4.64 (50)
4.0L
(non-torsion
bar
suspension)All 4309 (9500) 2667 (5880) 4.64 (50)
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