51
(
IV
)
Malfunction
in
brake
system
Malfunction
phenomenon
Malfunction
system
Reason
Solving
method
Brake
is
not
firm
Brake
system
1.
Leaking
brake
line
2.
Excessive
dirt
on
pads
or
rotors
3.
Worn
rotor
or
pads
4.
Brake
master
cylinder
is
faulty
5.
Brake
callipers
are
faulty
6.
Brake
fluid
is
low
7.
Brake
system
has
air
in
it
8.
Rotors
and
callipers
are
hot
from
excessive
brake
use.
Repair
Repair
or
clean
Replace
Change
Repair
or
replace
Add
fluid
Bleed
the
system
Allow
to
cool
Brakes
are
pulling
to
one
side
or
the
other
Steering,
running
system,
suspension
1.
Oil
on
pads
or
calipers
2.
Leaking
caliper
3.
Uneven
tire
pressure
4.
Front
wheel
adjustment
is
wrong
5.
Vehicle
frame
is
bent
6.
Bent
or
crushed
brake
line
7.
Worn
brake
pads
or
rotors
8.
Suspension
parts
loose
9.
Vehicle
is
leaning
10.
Left
and
right
side
tires
have
uneven
tread
wear
Clean
or
Change
Replace
Correct
Adjust
Repair
Replace
Replace
Repair
or
adjust
Check
and
correct
Correct
Brakes
do
not
release
Brake
system
1.
Brake
master
cylinder
faulty
2.
Brake
pedal
return
spring
is
too
soft
3.
Parking
brake
adjustment
is
incorrect
4.
Parking
brake
cable
sticks
5.
Worn
brake
pads
or
calipers
6.
Brake
line
is
bent
or
damaged
Repair
or
replace
Replace
Adjust
Lubricate
or
Change
Repair
or
Change
Change