Break problem question
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Break problem question
When driving my 79 my break pedal went almost to the floor before it began to stop the truck, fluid checked out fine, so what could be the problem? Booster? Master cylinder?
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Senior User
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No I believe it was more of a gradual process, it started to feel like I had to press the pedal down more, and them after awhile it was almost too the floor before it stopped
Postmaster
Joined: Nov 2011
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Generally a low pedal after service involving opening up the brake lines indicates air in the system. Often pumping the brakes will give a higher pedal if this is the case. The fix is to bleed completely.
If there was no service involved and it got worse over time, probably a bad master as posted above. Time for a new one.
If there was no service involved and it got worse over time, probably a bad master as posted above. Time for a new one.
Post Fiend
Joined: Mar 2011
Posts: 8,501
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From: Lynchburg, VA
Sounds like failing cup seals. Time to rebuild/replace the master cylinder.
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