Ford Thunderbird 1957 - Excessive Fuel Consumption; Engine Overheats; Engine Fails to Reach Normal Operating Temperature

Section
1
General
Engine
Trouble
Shooting
'"'
Table
?
General
Engine
Trouble
Shooting
(cont'd)
Engine
Does
Not
Develop
Full
Power,
Or
Has
Poor
High Speed
Performance
(cont'd)
Excessive
back
pressure
in
the
exhaust
system.
Torque
converter
stall
speed.
Torque
converter
fails
to lock
up
at
high
speeds.
Brake
adjustment
(Part
6-Chapter
1).
Tire
pressure
(Part
4
Chapter
3).
Excessive
carbon in
engine.
Excessive
Fuel
Consumption
Determine the
actual
fuel
consumption
with test
equipment
installed
in the
car.
If
the
test
indicates that the fuel consumption
is not
excessive,
demonstrate to
the
owner
how
improper
driving
habits
will
affect fuel
consumption.
If
the
test indicates
that the
fuel
consumption
is
excessive,
make the
preliminary
checks
listed
below
before
proceeding
to
the fuel
and
ignition
systems.
PRELIMINARY
CHECKS
Tires (Part
4
Chapter
3).
Wheel
alignment (Part
4
Chapter
1).
Brakes (Part 6-Chapter
1).
Exhaust gas control
valve
(page 1-10).
Odometer
calibration
(Part
8
Chapter
1).
Ignition
timing
(Part
2
Chapter 1).
Valve lash (page 1-15).
FUEL
SYSTEM
(Part
2-Chapter
2)
IGNITION
SYSTEM
(Part
2-Chapter
1)
ENGINE
COMPRESSION (page
1-9)
COOLING
SYSTEM
(Part 2-Chapter
3)
TORQUE
CONVERTER
STALL SPEED
TORQUE
CONVERTER
CONTINUES
TO
CONVERT
AT
LOCKUP
SPEED
Engine
Overheats
Temperature
sending
unit
(Part
8
Chapter
1).
Temperature
gauge
(Part
8
Chapter 1).
Exhaust
gas
control
valve
(page
1-10).
Cylinder
head
bolt
torque
(Part
1-Chapter
2
or 3).
Cooling
system
(Part
2
Chapter 3).
Ignition
timing
(Part
2-Chapter 1).
Valve
timing
(page
1-17).
Valves
(page
1-14).
Exhaust
system
(page
1-30).
Brake
adjustment
(Part
6-Chapter 1).
Engine
Fails
To
Reach
Normal
Operating
Temperature
Temperature
sending
unit
(Part
8-Chapter 1).
Temperature
gauge
(Part
8-Chapter
1).
Cooling
system
(Part
2-Chapter 3).