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Brake pedal to floor but can be pumped up.

Tiny
SUNFIRELTD
  • MEMBER
  • 1966 VOLVO 240
  • 1.8L
  • 4 CYL
  • 2WD
  • MANUAL
  • 160 MILES
Brake pedal to floor but can be pumped up. Changed master cylinder, calipers, rear plungers, front flex brake hoses, front pads new and back shoes thick. Changed rear flex hose to "t" brake line feeder. No apparent leaks. Took brake booster out of system. Did others like this before and no problem. Understand these boosters create problems over time. Your thoughts?
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Saturday, April 10th, 2021 AT 12:46 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Hi,

You have replaced everything. If there are no leaks, things are properly adjusted, and everything is new, either there is still air in the system or you got a bad master cylinder.

The system is a basic hydraulic system. If the pedal is going to the floor, nothing else really makes sense. Is the master cylinder a remanufactured one? Is this the same problem you were having prior to parts being replaced?

Here is a link that discusses what you are experiencing and the most common repairs. Hopefully, something will help.

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

Let me know.

Joe
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Saturday, April 10th, 2021 AT 8:42 PM

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