Brake pedal to floor but can be pumped up.

1966 VOLVO 240
160 MILES • 1.8L • 4 CYL • 2WD • MANUAL
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SUNFIRELTD
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  • 1 POST
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?
Apr 10, 2021 at 12:46 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Apr 10, 2021 at 8:42 PM
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