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How to keep your brakes from letting you down
Think of your car's brake system as an extension of your body. If
you push on the pedal and the car doesn't respond as you expect it to,
you may be in trouble. When your brakes feel good you'll feel
better about driving. There are no short cuts on brake work.
Invest in the best service you can get.
Why Do You Need The Brake
System Flushed?
There is an increasing awareness of the dangers of
water and corrosion producing contaminates. Brake fluid contaminated by
moisture lowers the boiling point of the fluid to the point that, even
under ordinary conditions, your brakes could get hot enough to cause the
brake fluid to boil causing vapor to form in the brake system. The vapor
is compressible, causing a low or no brake pedal. Moisture gets into the
fluid because conventional brake fluid is hygroscopic (it has a magnetic
attraction for moisture, which it absorbs from the atmosphere). In your
vehicle, moisture is absorbed through the brake master cylinder
reservoir and permeable brake hoses. As a result of this, the moisture
along the steel line, rubber hoses, cast iron, aluminum and brake fluid,
temperatures can reach 400 to 500 degrees. This causes an
electrochemical reaction that makes the brake fluid so acidic that it
can result in early failure of brake components and putting you in
danger. Brake fluid contamination has become so much a concern of the
major car manufacturers, that they have added it to their required
maintenance. Failure to change your vehicle's brake fluid can result in
very costly repairs. If you have a vehicle with ABS-type brakes,
component failure can run into the thousands.
Your brake fluid should be flushed every 30,000 miles or every 2 years.
Just adding new fluid is not sufficient enough, the system needs to be
properly flushed to rid the system from contaminants and moisture.
Brake
Failure Symptoms
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Noises: Your brake system may be crying for
help if you're hearing strange noises when you depress the brake.
Two of the most common are squeaks or grinding. |
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Squeaks: Friction from the brake lining
causes heat. Under extreme conditions this can damage the pads
and/or lining, brake drums and rotors. |
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Grinding: A metallic grinding sound
indicates your brake pads are worn through. Metal-to-metal contact
will damage drums or rotors. |
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Low or Fading brake pedal: Do your brakes
require pumping to stop the car? Does the pedal sink to the floor
board when you're stopped at a light? There may be a leak in the
brake system, air in the brake lines, or the need for a brake
adjustment. |
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Pulling to on side or brake drag: Worn or
uneven brake linings or a damaged brake line can cause your vehicle to
pull to one side. Brakes that are out of adjustment or have
contaminated fluid can cause brakes to drag. |
Inspecting your Brakes
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Master Cylinder: The master cylinder, heart
of the brake system, contains a reservoir for brake fluid. It is
located on the firewall and should be checked periodically to ensure the
proper fluid level. |
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Brake Lines: Attached to the master
cylinder, steel brake tubing runs to all four wheels. Brake lines
should be inspected for rust, which can lead to leaks. If the
lines are damaged they should be replaced. |
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Brake Hoses: Rubber brake hoses run from
the brake lines to the brake calipers and wheel cylinders.
Constant exposure to road grime, dirt, salt and other elements can cause
the rubber to become brittle and crack, leading to brake failure. |
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Linings and Pads: The pads and brake shoe
linings should be checked per4iodically for uneven or excess wear,
glazing, or saturation from brake fluid or grease. |
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Calipers and Wheel Cylinders: Brakes are
activated by brake fluid pressure from the master cylinder pushing a
piston located in the caliper or wheel cylinder against the pad or shoe.
A leak can cause erratic braking or brake failure. |
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Bearings and Seals: Wheel bearings should
be inspected and lubricated periodically. Worn wheel bearings,
which can cause faulty steering as well as erratic braking, should be
replaces. |
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Parking Brake: The parking brake should be
adjusted periodically. |
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