brake pedal goes all the way to the floor what the problem
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1997 Cadillac Seville SLS Question: brake pedal weak
Answer #1patrick mannion from Greg Solow's Engine Room, April 08, 2011, 23:10Master
Check the fluid level in the reservoir if it is low there is a leak that needs to be attended to. If the level is fine but the pedal is "mushy" look at the color of the brake fluid if it is brown and dark then the master cylinder may have failed due to contaminated brake fluid. brake fluid should be flushed every two years especially in wetter climates as it takes in moisture from the air.