bled according to book, master, then RR, LR, RF, LF,
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1996 Dodge Ram 2500 Question: brake issue:spongy when engine is running good when not all new parts any idea
Answer #1Greg's Orange Auto (13242 Answers) , Orange, CA - (714) 361-9386globalhelper January 22, 2013, 12:55Master
poss bad master cyl?
Replycarpie, January 22, 2013, 13:26Rookie
replaced master cylinder, bled many times
Replyglobalhelper, January 22, 2013, 14:51Master
did you buy r/b mastercyl or new?
Replycarpie, January 22, 2013, 16:23Rookie
Replyglobalhelper, January 22, 2013, 20:07Master
maybe thats your problem.
Answer #2ziptie12 January 23, 2013, 04:18Master
With the engine off ,does the brake pedal pump up and get 'solid'?
Replycarpie, January 23, 2013, 05:39Rookie
yes, it does
Replyziptie12, January 23, 2013, 10:53Master
Next , when driving it , does it have good response to the touch and does the ABS work as designed?
Replycarpie, January 23, 2013, 12:29Rookie
very little pedal when driving, brake and ABS light are always on, only about 1 inch left to floor when brake is on
Replyziptie12, January 24, 2013, 08:42Master
As globalhelper already mentioned then , possibly a faulty re-man. M/C. Disconnect the lines and plug the ports at the M/C (possibly came with plugs threaded into it for shipping)bleed M/C again and check pedal with engine off and then running. If the pedal stays solid while running this time , then you've either still got air in the lines elsewhere , or another part is the cause. If the master cylinder does not hold pressure , then exchange and bench bleed the next one before installing.
Replycarpie, January 25, 2013, 15:43Rookie
okay, here's where we are. Mechanic bled brakes, says master is fine. Good hard pedal w/engine off. Goes to 1 1/2 inches from bottom when running, good brakes at that point! the mystery continues...
Replyziptie12, January 25, 2013, 19:34Master
Drum brakes in back? If parking brake lever (inside drum) is not in the fully released position and the shoes are not adjusted properly(must pull drums to inspect both sides) , that may cause excessive travel in the wheel cylinder also leading to your symptom.IF parking brake PEDAL is 'self adjusting' there may be a special method to release it(which I don't know , or I'd tell you).ONE other thought (don't laugh)........The pedal heights aren't the adjustable kind , are they??I had that in an Odyssey not long ago, the owner had unknowingly pushed on the adjuster button and lower the pedals to the lowest setting and then brought it in to us all freaked out. -------Don't think that's the case with yours , just had to mention it.either way , please reply with the fix , now I'm really curious!
Replygoodguy, February 21, 2013, 00:39Master
I agree with ziptie