Brake pedal goes straight to the floor

2004 FORD F-150
180,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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4MARTYA
  • MEMBER
  • 2 POSTS
Changed the master cylinder and changed a brakeline. Now I have no brakes at all. I hear a leak from the new line at the fitting I think. And I can't get the driver front bleeder valve to open to bleed. Would that cause me to have no brakes at all?
Jul 4, 2019 at 6:17 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
Welcome to 2CarPros.

If you aren't able to bleed that, most likely the system has a lot of air in it and is causing the problem and if there is a leak, it needs fixed.

Confirm there is no leak or it is repaired. Then we have two choices, replace the caliper with the stuck bleeder, or work at getting it opened.

When I have one that won't open, I first take a wire brush all around it to remove any corrosion, dirt, rust... Then spray it with a good penetrating oil and let it work at it. See if that helps.

Let me know.

Joe
Mar 10, 2021 at 3:00 AM
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