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 FAQ #197
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Find out why Brakes are free at the start of a journey, but gradually bind or lock on as you drive
Cause: When braking, heat is generated. This heat is transferred to the brake fluid. As the temperature increases, the fluid expands. Under normal circumstances, this expanded fluid returns to the master cylinder reservoir.

If the expanded fluid cannot return to the reservoir, pressure builds up and applies the brakes; and more heat and more pressure are generated. When the fluid cools down, pressure reduces and the brakes release.

There is a good article here on how to fault find and resolve: - Click Here - from Brakes International
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FAQ Posted by Dave_Retired.
Info Created: 11 May 2010
Last Updated: 11 May 2010