I have a short bed Dodge Ram 2500 24valve diesel 4x4. I recently hit a
telephone pole dead center. I replaced everything that was wrong. I
did not have any problems with the brakes intill just recently. I
checked there is no fluid that is leaking that I can see. If I pump
the brakes it will build pressure but it only last for a miniute, then
the pedal will go right to the floor not appling any brakes at all. As
you can imagine this is quite the problem. What possibly could be
wrong? Please give me an idea as this truck is my everyday
transportation, and as of right now I do not have the funds to take it
to a shop.
first check the brakes master cylinder to see if u are low on fluid if you
are check to see if u have a bad brake line check to see if u have a bad
caliper if u dont see anything check the master cylinder u may hafto take
the mounting bolts off and look at the back of the master cylinder to see
if it is wet with brake fluid if it is then u have a bad master cylinder
and that would cause it to pump up and as you are holding the brake peddle
it slowly fand to the floor and pump it up again and hold it and fade to
the floor again hope this helps
Sounds like it could be a master cylinder, but check to make sure that
you aren't losing vaccume pressure anywhere as well. Did you replace
your vaccume pump after the wreck? What about the lines? If it was a
small leak you may still be generating enough pressure for some mild
braking but not for prolonged useage. A master cylinder sounds like
your best bet though.
Tbone, I didn't follow the thread, and I'm not sure how familiar you are
with these trucks. Typically, IIRC that generation of Cummins Ram has
hydraulically assisted brakes; the vacuum pump would have nothing to do with
them. I know my '00 has hydraulic assist.
Join www.devilbrad.com and find out what free exchange of info is all about.
Hydroboost started on the Dodge/Cummins in 1997. My '96 was vacuum, lot's
of guys with the older trucks are excited about changing to hydroboost, I'm
not sure why it's a big deal to them, both systems seemed to work fine for
I'm not all that familiar with the diesel models. The OP said that his
brake pedal was going to the floor and giving no braking action and there
were no leaks but if he pumped it a few times, he would get limited braking
action. I posted that it is most likely the master cylinder and asked what
type of anti-lock it had (just in case). Another poster said that it looked
like the master cylinder as well but it could be due to the vacuum pump. I
assumed that he was referring to the vacuum boost (if this model uses that
type) and said that a vacuum leak would not cause the pedal to go to the
If at first you don't succeed, you're not cut out for skydiving
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