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VIEW SOLUTIONS TO COMMON PROBLEMS
![]() ![]() Select a part to view solution for common problems associated with the item.
Operation:
Brake pads provide the friction
material that when forced against the
friction surface of the rotor stops the
vehicle.
Advice:
Check the old brake pads for uneven
wear. Uneven wear is an indication of
loose or worn brake hardware or a
sticking caliper.
Operation:
Brake shoes provide the friction
material that when forced against the
friction surface of the drum stops the
vehicle.
Advice:
Check the old brake shoes for uneven
wear.
Uneven wear from one side of the shoe
to the other is an indication of loose
or worn brake hardware.
Uneven wear from the top of the shoe to
the bottom is indication that the shoe
is not contacting the drum correctly,
usually due to a drum that is beyond
wear specifications.
Recommendations:
Brake hardware
Operation:
The brake rotor provides the rotating
friction surface for the brake pads to
interact with in stopping the vehicle.
Advice:
Check the friction surface for uneven
wear, grooves or small stress cracks
caused by excess heat.
Uneven wear is an indication of lose or
worn brake hardware.
Grooves in the friction surface are an
indication of brake pads that have worn
down to the metal rivets or brake pad
framework, or of debris lodged between
the brake pad and rotor, possibly
broken brake hardware.
As long as the damage is not too
severe, uneven wear can be corrected by
resurfacing the rotor.
Check to make sure that the rotor is
within specifications before and after
the resurfacing.
A rotor with heat stress cracks should
be replaced.
Recommendations:
Resurface or replace the rotors.
Operation:
The brake drum provides the rotating
friction surface for the brake shoes to
interact with in stopping the vehicle.
Advice:
Check the friction surface for uneven
wear, grooves or small stress cracks
caused by excess heat.
Uneven wear is an indication of lose or
worn brake hardware.
Grooves in the friction surface are an
indication of brake shoes that have
worn down to the metal rivets or brake
shoe framework, or of debris lodged
between the brake shoe and drum,
possibly broken brake hardware.
As long as the damage is not too
severe, uneven wear can be corrected by
resurfacing the drum.
Check to make sure that the drum is
within specifications before and after
the resurfacing.
A drum with heat stress cracks should
be replaced.
Recommendations:
Resurface or replace the brake drums.
Operation:
The caliper converts the hydraulic
pressure sent from the master cylinder
into the mechanical force that pushes
the brake pads into contact with the
brake rotor to stop the vehicle.
Advice:
Check for moisture anywhere around the
caliper.
Moisture is an indication of a leaking
caliper.
A leaking caliper should be either
rebuilt or replaced.
If a caliper is allowed to leak brake
fluid onto the new pads, it will ruin
the new pads causing the brakes to grab
and emit a growling or rumbling noise
when applied.
Recommendations:
Rebuild or replace leaking calipers.
Operation:
The wheel cylinder converts the
hydraulic pressure sent from the master
cylinder into the mechanical force that
pushes the brake shoes into contact
with the brake drum to stop the
vehicle.
Advice:
Check for moisture anywhere around the
wheel cylinder. Moisture is an
indication of a leaking wheel cylinder.
A leaking wheel cylinder should be
either rebuilt or replaced. If a wheel
cylinder is allowed to leak brake fluid
onto the new shoes, it will ruin the
new shoes causing the brakes to grab
and emit a growling or rumbling noise
when applied.
Recommendations:
Rebuild or replace leaking wheel
cylinders.
Operation:
The brake lines act as a conduit for
the brake fluid, supplying each wheel
with the hydraulic action necessary for
brake operation. The system is made up
predominantly with metal brake lines.
Flexible hoses are used at the wheels
to accomadate the movement of
suspension and steering.
Advice:
Check metal brake lines for signs of
corrosion, physical damage or leakage.
Check flexible brake hoses for splits,
cracking or signs of leakage.
The brake lines are connected to the
various brake components with hollow
fittings called flare nuts or line
fittings. Because flare nuts are hollow
they are susceptible to damage if a
normal open ended wrench is used to
remove them.
Flare nut wrenches, sometimes called
line wrenches are special open ended
wrenches designed to slide over the
brake line and still provide maximum
grip on all sides of the fitting.
Apply a generous spray of penetrating
oil to the threads of the fittings and
allow it to soak in before loosening
the fittings.
Recommendations:
Flare Nut Wrench set
Penetrating spray
Operation:
The brake lines act as a conduit for
the brake fluid, supplying each wheel
with the hydraulic action necessary for
brake operation. The system is made up
predominantly with metal brake lines.
Flexible hoses are used at the wheels
to accomadate the movement of
suspension and steering.
Advice:
Check metal brake lines for signs of
corrosion, physical damage or leakage.
Check flexible brake hoses for splits,
cracking or signs of leakage.
The brake lines are connected to the
various brake components with hollow
fittings called flare nuts or line
fittings. Because flare nuts are hollow
they are susceptible to damage if a
normal open ended wrench is used to
remove them.
Flare nut wrenches, sometimes called
line wrenches are special open ended
wrenches designed to slide over the
brake line and still provide maximum
grip on all sides of the fitting.
Apply a generous spray of penetrating
oil to the threads of the fittings and
allow it to soak in before loosening
the fittings.
Recommendations:
Flare Nut Wrench set
Penetrating spray
Operation:
Brake hardware is a term used for all
of the springs, clips, guide pins and
other misc. pieces that hold the brake
pads and calipers in place and guide
their movement during brake
application.
Advice:
Check for corroded, bent, worn out or
broken springs, guide pins or clips.
Damaged or worn out brake hardware can
cause uneven wear on the new brake
pads.
To ensure the best results from your
brake job, the brake hardware should be
replaced with the new brake pads.
Recommendations:
Replace Brake hardware
Operation:
Brake hardware is a term used for all
of the springs, clips, guide pins and
other misc. pieces that hold the brake
pads and calipers in place and guide
their movement during brake
application.
Advice:
Check for corroded, bent, worn out or
broken springs, guide pins or clips.
Damaged or worn out brake hardware can
cause uneven wear on the new brake
pads.
To ensure the best results from your
brake job, the brake hardware should be
replaced with the new brake pads.
Recommendations:
Replace Brake hardware
Operation:
The wheel bearings support the weight
of the vehicle and allow the wheels to
spin freely.
Advice:
All wheels will have some sort of
bearing and a seal to hold in lubricant
and keep out dirt.
Some bearings are sealed in a hub
assembly or pressed into an axle
housing and can only be serviced by
replacing them.
Others such as tapered roller bearings
can be cleaned inspected and repacked
with grease.
Use a can of spray brake cleaner to
remove the old grease.
Check the integrity of the cage holding
the rollers in place.
A loose wobbly cage is an indication of
wear.
Check the rollers for discoloration.
Discoloration is an indication that the
bearing has been subjected to excess
heat and should be replaced.
Always install a new race when
replacing a bearing.
Always install a new seal whenever
servicing or replacing a bearing.
Recommendations:
Spray Brake cleaner
Wheel bearing grease
Wheel seal
Operation:
The wheel bearings support the weight
of the vehicle and allow the wheels to
spin freely.
Advice:
All wheels will have some sort of
bearing and a seal to hold in lubricant
and keep out dirt.
Some bearings are sealed in a hub
assembly or pressed into an axle
housing and can only be serviced by
replacing them.
Others such as tapered roller bearings
can be cleaned inspected and repacked
with grease.
Use a can of spray brake cleaner to
remove the old grease.
Check the integrity of the cage holding
the rollers in place.
A loose wobbly cage is an indication of
wear.
Check the rollers for discoloration.
Discoloration is an indication that the
bearing has been subjected to excess
heat and should be replaced.
Always install a new race when
replacing a bearing.
Always install a new seal whenever
servicing or replacing a bearing.
Recommendations:
Spray Brake cleaner
Wheel bearing grease
Wheel seal
Operation:
The parking brake on a drum brake
system has a series of cables that when
actuated from the driver's compartment
moves the parking brake levers on both
rear wheels, forcing the rear brake
shoes against the friction surface of
the drums to hold the vehicle in place.
Advice:
With the parking brake disengaged and
the drum removed, check to ensure that
the brake shoes are fully seated at the
top and bottom anchors.
If not the parking brake cable may be
sticking internally and holding the
brake shoes partially applied. A
sticking parking brake cable should be
replaced.
Never adjust the parking brake cable
until after normal brake shoe
adjustment has been made.
After normal brake shoe adjustment if
the parking brake still does not hold
the vehicle stationary, then the
parking brake cable can be adjusted.
Operation:
Flushing the brake fluid removes old or
contaminated brake fluid from the
system replacing it with fresh brake
fluid.
Advice:
Brake fluid is a hygroscopic fluid,
which means that it is in its nature to
absorb moisture from the air.
Over time the amount of moisture
accumulated will decrease the
efficiency of the fluid to act
hydraulically.
Moisture in the brake fluid can also
cause corrosion in the system.
Brake fluid should be flushed every two
years.
Recommendations:
Brake fluid
Operation:
Flushing the brake fluid removes old or
contaminated brake fluid from the
system replacing it with fresh brake
fluid.
Advice:
Brake fluid is a hygroscopic fluid,
which means that it is in its nature to
absorb moisture from the air.
Over time the amount of moisture
accumulated will decrease the
efficiency of the fluid to act
hydraulically.
Moisture in the brake fluid can also
cause corrosion in the system.
Brake fluid should be flushed every two
years.
Recommendations:
Brake fluid
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