GM Tech Tip: Squeak Noise On Brake Pedal Application
Some customers may comment on a squeak noise when the brake pedal is applied or when released. This noise is normally heard when the brake pedal is slowly applied with the engine on or off, but can occur when the brake pedal is released. The noise may be isolated to the master cylinder area.
Latest Toyota Recall Due to Replacement Brake Fluid and OE Seals
Toyota Motor Sales announced it will conduct a voluntary Safety Recall for a brake problem that occurs once the vehicle has been serviced with non-factory fill/genuine brake fluid. Drivers may experience a small amount of the brake fluid leaking from the brake master cylinder, resulting in illumination of the brake warning lamp.
Tech Tip: Reverse Bleeding Basics
Many vehicles can develop release problems after a clutch change or replacement of the hydraulic release system components; usually consisting of a clutch master cylinder, slave cylinder and line. Conventional bleeding is usually done by opening the slave cylinder bleeder valve and either gravity bleeding or pumping the clutch pedal while opening and closing the slave bleeder valve.
Tech Feature: Brake Job on Ford Edge
The Ford Edge is an SUV based on a the CD3 platform. The brakes on these vehicles are straightforward and do not break any new ground. The brake systems on all variants have disc brakes at all corners. There are no major changes to the brakes system from 2007 to 2009. For the 2008 model year, ABS became a standard feature, as did a direct tire pressure monitoring system. The worst brake component to service is the master cylinder. Getting to the unit requires removal of the trunking for the air intake, battery tray and other components.
Tech Tip: Some Facts About Brake Fluid Flushing
The purpose of the brake fluid is to transfer force under pressure from the master cylinder to the calipers/wheel cylinders. Non-contaminated fluid is imperative in order to maintain good brakeability, and to retain a high boiling point to prevent gassing and brake pedal fade.
Ford Recall: The Problem is the Brake Fluid in the Switch – The Solution is a Fuse
Ford is performing the largest ever recall for a brake light switch on the side of the master cylinder. The recall will cover 9.6 million Ford vehicles made between 1992 and 2004.
Tech Tip: Inspecting Brake Hydraulics
The first step in checking brake hydraulics is to inspect the fluid level in the master cylinder reservoir. Although many cars incorporate a float mechanism or sensor in the reservoir that turns on a red "Brake" and/or orange "ABS" warning light on the instrument panel when the brake fluid level falls to a dangerous level, never assume that the fluid level sensor is a fail-safe mechanism ….
Tech Tip: The Science of Brake Fluid
As demanding as a driver is of his brakes, a brake system requires even more from the brake fluid. Stepping on the brake pedal, the brake master cylinder transforms mechanical force into hydraulic pressure. Being non-compressible, brake fluid is responsible for transferring hydraulic pressure through brake lines and hoses down to the brake caliper and wheel cylinder assemblies. In addition to the important role of transferring pressure, brake fluid also includes other vital characteristics that play a key role in ….
Tech Tip: Basic Checks Go a Long Way in Restoring Brake System Integrity
Brake work is fairly routine for most technicians. Even so, it’s easy to overlook some obvious problems with the hydraulic part of the system when replacing pads and rotors. So, following are some things you should always remember to check. If the fluid level in the master cylinder is low, it means one of two things ….
Tech Tip: Uncovering the Cause of a Sinking, Low or Spongy Brake Pedal
To diagnose a sinking, low or spongy brake pedal, begin by isolating the master cylinder. Remove the lines from the master cylinder and insert blocking plugs into the ports. Press on the brake pedal. If the pedal is firm and hard, the master cylinder is good. If the pedal still drops, either air is in the unit or it is bypassing internally. Bleed the unit or ….