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Future: "Brake Fluid Flushing - The
Forgotten Service" Brake fluid flushing is an often overlooked maintenance procedure, and was the featured cover story"The Forgotten Service" in the April, 2002 issue of AP&T. DOT 3/4 brake fluid is hygroscopic, meaning it readily absorbs moisture from the atmosphere. Despite the claims of many auto makers, a hydraulic brake system is not truly closed to the atmosphere. Even with the increased use of non venting filler caps on modern vehicles, the fluid in the brake system is still exposed to moisture in the air. This can happen whenever the filler cap is removed for extended periods of time (during filling or a typical brake bleed procedure), or from the higher operating tempatures combining with the rubber brake hoses, to provide microscopic entry points for additional moisture. Whenever a brake fluid flush is performed, either as an additional service, routine maintenance, or as part of a regular brake job, it is beneficial to both the vehicle owner and repair shop bottom line. All vehicles should have the brake fluid flushed every 2-3 years minimum or 48,000 KM (30,000 miles). With the
advent of ABS brakes on most new vehicles, it is even more critical that a regular brake fluid flush be performed. The small intricate valves inside an ABS hydraulic unit are sensitive to clogging from dirt particles in old brake fluid. In extreme cases such as the Kelsey Hayes RWAL ABS (used on many 1990's GM trucks),total loss of brake pedal from a clogged ABS valve, has been traced back to contaminated brake fluid as the root cause. A random inspection of vehicles in the U.S. showed that the average 8 year old vehicle has a brake fluid moisture content of 2.6%. The research also indicated that aprox 25% of all vehicles have a moisture content over 4%. Why is this bad? Even a 3% moisture content can reduce the boiling point of brake fluid by 25%, which in turn can increase the possibility of vapor lock or brake fade, at lower brake system temperatures. The most severe consequences of vapor lock, being total loss of pedal pressure. Contaminated brake fluid can also cause serious damage to critical and expensive brake system components, resulting in saftey concerns, and/or expensive brake repair costs
No other method or tool, will perform a complete fluid flush as easily,quickly, and effectively as Speedi-bleed.
Many of our customers
are performing 3-5 brake fluid flushes per
week, and are using the tool to generate an extra revenue source. Using Speedi-Bleed,
you will discover that a complete 4 wheel fluid flush can be performed in 10-20 minutes. (of course, not allowing for any bleeder screws that might be rusted shut).
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