Question about 1992 Ford F250
There is never a test or reason to pump your brakes
Accomplishes absolutely nothing.
There is no pressure in a braking system at all,
until you SLOWLY apply the brake pedal.
Then less than 1" off movement in the master cyl,
will develop 600 to 1800 lbs at the wheels
Release the brake pedal, the system goes to zero,
IT DOES NOT HOLD ANY PRESSURE
To answer your question
You not suppost to press the pedal hard
The saying goes--you apply the brakes,
not force the pedal arm and pin into the
vacuum booster, as though you want to damage it
When your driving what happens ?
You have higher manifold vacuum and
thus your pedal is normal,why the VACUUM
Posted on Mar 31, 2011
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Posted on Jan 02, 2017
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