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Old Dec 28, 2009 | 05:54 PM
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From: scottsdale
brakes

can you all help? i have a 78 f-250 and i have to push down all the way on my peddle to the floor for the truck to stop does any one know what is wrong???????????????
 
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Old Dec 28, 2009 | 06:09 PM
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bmuhlbach
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From: hinckley ohio
i'd guess master cylinder is bad.
 
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Old Dec 28, 2009 | 06:18 PM
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4x4 Bart
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This can be many things.
First check to see if you have signs of fluid leaking, especially at the wheels and master cylinder/ brake booster.
Did this happen suddenly or over time?
Is the master cylinder low on fluid?
 
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Old Dec 28, 2009 | 07:51 PM
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79FordBlake
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Im fixing to be replacing the master cylinder in my truck. Unless you hit the brakes hard the pedal will go to the floor. Especially if your at a stop sign a while it will leak down. The harder you push though it pushes out that seal and will make it seal. Just a problem of old age, may be your problem to. Probably a good idea to bleed the system and get some new fluid circulating. Brake fluid collects moisture over the years. You can ruin a new bottle of brake fluid by leaving it open all day, it will absorb the moisture in the air.
 
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Old Dec 28, 2009 | 09:58 PM
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From: scottsdale
brakes II

Originally Posted by 4x4 Bart
This can be many things.
First check to see if you have signs of fluid leaking, especially at the wheels and master cylinder/ brake booster.
Did this happen suddenly or over time?
Is the master cylinder low on fluid?
that is how i got it im just trying to fix and drive it i love it
 
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Old Dec 29, 2009 | 10:23 AM
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It is important to look and see if the system is leaking.
If not, then I would adjust the rear brakes. This could be the problem. If the adjusters don't turn, then you will have to pull the drums and repair whats needed to get the adjusters working.
 
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Old Dec 29, 2009 | 12:09 PM
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Or just adjust them by hand every oil change or so....
 
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