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-   -   Spongy Brakes (https://www.truckforums.com/forum/ford-heavy-duty-101/spongy-brakes-19640/)

ImTrouble 04-29-2013 06:04 PM

Spongy Brakes
 
When I push down the brake pedal as far as it will go w/o using excessive force, the truck stops, but then the brake pedal will slowly start to begin going lower and lower. I have to pump the break to get the pedal back to where it feel like I pressing on the break.

What does this mean, and how do you fix it?

Thanks :)

In2Trux 04-30-2013 09:41 PM

Sounds like you've got a brake fluid leak.

gmcmannow 05-02-2013 06:46 AM


Originally Posted by ImTrouble (Post 80137)
When I push down the brake pedal as far as it will go w/o using excessive force, the truck stops, but then the brake pedal will slowly start to begin going lower and lower. I have to pump the break to get the pedal back to where it feel like I pressing on the break.

What does this mean, and how do you fix it?

Thanks :)

Usually means your master cylinder is going

smallblockfox 05-02-2013 12:09 PM

yup. . i have the same issue in mt 1988 ford f350 right now. just a case of a worn out master cylinder. super easy to fix. two bolts and two lines. slip on the new one and done


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