brake problem

220,000 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
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TROYWILLIAMS43
  • MEMBER
  • 1 POST
My truck has a low brake pedal, I have replaced the front brake calipers, rear brake shoes, and still the brake pedal goes to the floor. I have clamped off the two front lines and the rear. that gives me a good firm pedal. if i take the clamp off the rear I lose about an inch of the pedal. I remove the clamp from the left front I lose about another inch of brake pedal. and of course i take the right front off I lose everything again.
Jun 6, 2016 at 6:59 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
you have air in system if you have abs which it probably is, rent a power brake bleeder and bleed system that way it can take up to three quarts. if still doing it a local professional will need to open valves on abs unit with a scanner to bleed it.
Aug 27, 2020 at 11:31 AM
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