2003 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS ABS

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Page 8 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual WARNING LIGHTS AND CHIMES
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists

Page 9 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual Brake reserve system warning
(if equipped):Illuminates to indicate normal Hydromax booster reserve
system activation when the engine is OFF and the service brake pedal is
applied.
This light may also

Page 11 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual GAUGES
Speedometer:Indicates the
current vehicle speed.
Engine coolant temperature
gauge:Indicates engine coolant
temperature. At normal operating
temperature, the needle will be in
the normal range (

Page 22 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual 4. Make sure the gearshift is in P
(Park).
5. Turn the key to 4 (ON) without
turning the key to 5 (START).
Make sure the corresponding lights illuminate or illuminate briefly. If a
light fails to illu

Page 24 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual however, they may be heard at any time while braking and can be
aggravated by environmental conditions such as cold, heat, moisture,
road dust, salt or mud. If a “metal-to-metal,” “continuous gr

however, they may be heard at any time while braking and can be
aggravated by environmental conditions such as cold, heat, moisture,
road dust, salt or mud. If a “metal-to-metal,” “continuous grinding” or
“continuous squeal” sound is present while braking, the brake linings
may be worn-out and should be inspected by a qualified service
technician.
If you are driving down a long or steep hill, shift to a lower gear.
Do not apply your brakes continuously, as they may overheat
and become less effective.
Anti-lock brake system (ABS)
On vehicles equipped with an anti-lock braking system (ABS), a noise
from the hydraulic pump motor and pulsation in the pedal may be
observed during ABS braking events. Pedal pulsation coupled with noise
while braking under panic conditions or on loose gravel, bumps, wet or
snowy roads is normal and indicates proper functioning of the vehicle’s
anti-lock brake system. The ABS performs a self-check after you start
the engine and begin to drive away. A brief mechanical noise may be
heard during this test. This is normal. If a malfunction is found, the ABS
warning light will come on. If the vehicle has continuous vibration or
shudder in the steering wheel while braking, the vehicle should be
inspected by a qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensates for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during hard braking with loss of front braking
traction.
Using ABS
•In an emergency or when maximum efficiency from the four-wheel
ABS is required, apply continuous force on the brake. The four wheel
ABS will be activated immediately, thus allowing you to retain full
steering control of your vehicle and, providing there is sufficient
space, will enable you to avoid obstacles and bring the vehicle to a
controlled stop.
Driving
24

Page 25 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual •The anti-lock system does not reduce stopping distance. Always leave
enough room between your vehicle and the vehicle in front of you to
stop.
•We recommend that you familiarize yourself with thi

•The anti-lock system does not reduce stopping distance. Always leave
enough room between your vehicle and the vehicle in front of you to
stop.
•We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
Hydraulic brake booster system (Hydroboost or Hydromax)
The Hydroboost and Hydromax systems receive fluid pressure from the
power steering pump to provide power assist during braking.
The Hydromax booster receives backup pressure from the reserve
system electric pump whenever the fluid in the power steering system is
not flowing. When the engine is OFF, the pump will turn on if the brake
pedal is applied, or if the ignition is turned to the ON position.
The sound of the pump operating may be heard by the driver, but this is
a normal characteristic of the system.
The reserve system provides reduced braking power, so the vehicle
should be operated under these conditions with caution, and only to seek
service repair and remove the vehicle from the roadway.
For Hydromax-equipped vehicles operating under normal
conditions,the noise of the fluid flowing through the booster may be
heard whenever the brake is applied. This condition is normal. Vehicle
service is not required.
If braking performance or pedal response becomes very poor, even when
the pedal is strongly depressed, it may indicate the presence of air in the
hydraulic system or leakage of fluid. Stop the vehicle safely as soon as
possible and seek service immediately.
ABS warning lamp
ABS
TheABSwarning lamp in the instrument cluster momentarily illuminates
when the ignition is turned to the ON position. If the light remains on
after the vehicle is started, continues to flash or fails to illuminate, have
the system serviced immediately. With the ABS light on, the anti-lock
brake system is disabled and normal braking is still effective unless the
brake warning light also remains illuminated.
With the ABS light on, the anti-lock
brake system is disabled and normal
braking is still effective unless the
brake warning light also remains
illuminated with parking brake released. (If your brake warning lamp
illuminates, have your vehicle serviced immediately.)
Driving
25

Page 40 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
9 20A Stoplamps: Trailer tow Electric
Brake controller feed, Body
builder rear turn/stop feeds, Body
builder stop lamp fe

Page 43 of 96

FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS 2003 10.G Owners Manual Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
6 20A* Parklamp feeds, Instrument panel
fuse #41, Warning chime module,
Trailer tow running lamp relay
coil, I/P dimmer module
7 15

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