2021 FORD F-53 ignition

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
8
Not used.
—
9
Not used.
—
10
Not used.
—
11
Brake on-off switch.
7.5 A
12
Smart datalink connector.
7.5 A
13
Not used (spare).
15 A
14
Not used (spare).
15 A
15
Not used.
—
16
Not used.
7.5 A
17
Yaw sensor.
7.5 A
18
Telematics control unit module.
5 A
19
Ignition switch.
5 A
20
Not used.
5 A
21
Not used (spare).
5 A
22
Not used (spare).
30 A
23
Not used (spare).
30 A
24
Not used (spare).
20 A
25
Not used (spare).
30 A
26
Not used (spare).
30 A
27
Not used (spare).
30 A
28
Not used (spare).
15 A
29
Brake on-off signal to 14A348.
5 A
30
Instrument cluster.
10 A
31
Steering column control module.
Not used (spare).
20 A
32
Not used.
—
33
110
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Fuses

Stripes or Graphics (If Equipped)
Hand washing your vehicle is preferred
however, pressure washing may be used
under the following conditions:
• Do not use water pressure higher than
2,000 psi (14,000 kPa)
.
• Do not use water hotter than
179°F
(82°C).
• Use a spray with a 40 degree wide
spray angle pattern.
• Keep the nozzle at a
12 in (305 mm)
distance and 90 degree angle to your
vehicle's surface.
Note: Holding the pressure washer nozzle
at an angle to the vehicle's surface may
damage graphics and cause the edges to
peel away from the vehicle's surface.
Underbody
Regularly clean the underside of your
vehicle using water. Keep body and door
drain holes free of debris or foreign
material.
Under Hood
For removing black rubber marks from
under the hood we recommend Motorcraft
Wheel and Tire Cleaner or Motorcraft Bug
and Tar Remover.
CLEANING THE ENGINE
Engines are more efficient when they are
clean because grease and dirt buildup keep
the engine warmer than normal. When washing:
•
Take care when using a power washer
to clean the engine. The high-pressure
fluid could penetrate the sealed parts
and cause damage.
• Do not spray a hot engine with cold
water to avoid cracking the engine
block or other engine components.
• Spray Motorcraft Engine Shampoo and
Degreaser on all parts that require
cleaning and pressure rinse clean. In
Canada, use Motorcraft Engine
Shampoo.
Note: If your vehicle has an engine cover
remove the cover before application of
Motorcraft Engine Shampoo and Degreaser.
Immediately rinse away any over spray.
• Never wash or rinse the engine while it
is hot or running; water in the running
engine may cause internal damage.
• Never wash or rinse any ignition coil,
spark plug wire or spark plug well, or
the area in and around these locations.
• Cover the battery, power distribution
box, and air filter assembly to prevent
water damage when cleaning the
engine.
CLEANING THE WHEELS
1. Regularly clean them with a wheel cleaner. We recommend that you use
Ford approved wheel cleaner if
available.
2. Remove dirt and brake dust with a sponge.
3. Remove tar and grease with a bug and
tar remover. We recommend that you
use Ford approved bug and tar remover
if available.
4. Thoroughly rinse the wheels with water
after cleaning.
131
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Vehicle Care

ENGINE SPECIFICATIONS
7.3L V8 Engine
Engine
445 in³ (7,293 cm³)
Displacement.
Minimum 87 octane
Required fuel.
1-5-4-8-6-3-7-2
Firing order.
Coil near spark plug with spark plug wire
Ignition system.
0.049 in (1.25 mm) - 0.053 in (1.35 mm)
Spark plug gap.
10.5:1
Compression ratio.
Drivebelt Routing Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B
MOTORCRAFT PARTS Motorcraft Part Number
Component
FA-1782
Air filter element.
BXT-65-750
Battery-motorhome chassis.
BXT-65-750
Battery-commercial chassis (except UPS
chassis).
152
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE305075

E
Economical Driving.......................................90
Electromagnetic Compatibility...............180
Emission Law..................................................46
Engine Block Heater......................................39
Engine Coolant Check.................................118
Engine Emission Control
.............................46
Engine Oil Check............................................116
Engine Oil Dipstick........................................116
Engine Specifications
..................................152
Environment......................................................15
Essential Towing Checks.............................87
Event Data Recording See: Data Recording............................................... 7
Export Unique Options.................................14
F
Ford Credit
..........................................................11
Ford Protect...................................................166
Fuel and Refueling..........................................41
Fuel Consumption
.........................................44
Fuel Filter.........................................................129
Fuel Quality.......................................................41
Fuses.................................................................104
Fuse Specification Chart...........................104
G
Gauges...............................................................24
Gearbox See: Transmission................................................ 50
General Maintenance Information........168
Getting Assistance Outside the U.S. and Canada...........................................................101
Getting the Services You Need.................98
H
Handbrake See: Parking Brake............................................... 55
Hazard Flashers..............................................94
Hill Start Assist
...............................................56
Hints on Driving With Anti-Lock Brakes..............................................................55
Horn......................................................................17 I
Ignition Switch
.................................................37
In California (U.S. Only)...............................99
Information Display Control........................17
Information Displays....................................30 General Information............................................ 30
Information Messages
..................................34
Instrument Cluster.........................................24
Instrument Lighting Dimmer.....................20
Introduction........................................................5
J
Jump Starting the Vehicle..........................94
L
Lane Keeping System
...................................70
Lighting Control...............................................19
Lighting...............................................................19
Load Carrying
...................................................78
Load Limit.........................................................78
M
Maintenance....................................................113 General Information........................................... 113
Message Center See: Information Displays................................. 30
Mobile Communications Equipment.......13
Motorcraft Parts
............................................152
N
Normal Scheduled Maintenance
.............171
O
Oil Change Indicator Reset
........................116
Oil Check See: Engine Oil Check........................................ 116
Ordering Additional Owner's Literature
......................................................102
Overriding Automatic High Beam Control.............................................................23
186
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Index

P
Parking Brake...................................................55
Perchlorate.........................................................11
Power Steering Fluid Check......................126
Pre-Collision Assist........................................74
Protecting the Environment........................15
R
Radio Frequency Certification Labels.............................................................176
Cruise Control Module...................................... 176
Recommended Towing Weights..............84
Reduced Engine Performance..................90
Refueling...........................................................43
Replacement Parts Recommendation........................................12
Reporting Safety Defects (Canada Only)...............................................................103
Reporting Safety Defects (U.S. Only)...............................................................102
Resuming the Set Speed.............................61
Roadside Assistance....................................93
Roadside Emergencies
................................93
Running-In See: Breaking-In.................................................... 91
Running Out of Fuel......................................42
S
Safety Precautions
.........................................41
Scheduled Maintenance...........................168
Setting the Cruise Control Speed............60
Snow Chains See: Using Snow Chains.................................. 150
Special Notices................................................12
Special Operating Conditions Scheduled Maintenance................................................173
Speed Control See: Cruise Control............................................. 60
Stability Control.............................................58 Principle of Operation........................................ 58
Starter Switch See: Ignition Switch............................................. 37
Starting a Gasoline Engine..........................37
Starting and Stopping the Engine............37 General Information............................................ 37Steering..............................................................73
Steering Wheel
................................................16
Switching Automatic High Beam Control On and Off
.....................................................22
Switching Cruise Control On and Off....................................................................60
Symbols Glossary.............................................5
T
Technical Specifications See: Capacities and Specifications.............152
The Better Business Bureau (BBB) Auto Line Program (U.S. Only).......................100
Tire Care
...........................................................134
Tires See: Wheels and Tires...................................... 134
Towing a Trailer...............................................83
Towing the Vehicle on Four Wheels.......89
Towing................................................................83
Traction Control
..............................................57
Principle of Operation......................................... 57
Transmission Code Designation
.............155
Transmission...................................................50
Transporting the Vehicle.............................96
U
Under Hood Overview - Commercial Chassis............................................................114
Under Hood Overview - Motorhome Chassis............................................................115
Using Adaptive Cruise Control...................61
Using Snow Chains......................................150
Using Traction Control..................................57
V
Vehicle Care
....................................................130
General Information.......................................... 130
Vehicle Identification Number
.................154
Vehicle Storage..............................................132
VIN See: Vehicle Identification Number.............154
W
Warning Lamps and Indicators
.................27
187
2021 Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 202010, Second-Printing Index