4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Soft Pedal

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Old 07-13-2006, 04:10 AM
  #1  
pete1665
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Default Soft Pedal

After doing a brake job on my 2000 gt the pedal is softer than before. None of the lines were disconnected, however I bled the system in the correct order: both by having my buddy push the pedal, and using a pressure bleeder attached to the master cylinder. I have done many brake jobs and never had this problem before... the pedal has always gotten stiffer, even on my buddy's saturn. Does the master cylinder ever need to be bled? (it looks like there are bleeder valves on the side of it). Does the car need to be running when I bleed it by pushing the pedal? I have the premium pads and 4 new rotors. (I cleaned the rotors before putting them on.) Any ideas??? I know its not just in my head, even my buddy said it isn't like it used to be.
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Old 07-13-2006, 12:19 PM
  #2  
Miliock
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Default RE: Soft Pedal

Mine were softer after I did the brakes also. Turn off the car, pump the brakes until it gets firm. Then start it up and take it for a drive. Mine felt great after doing this twice.
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Old 07-13-2006, 12:24 PM
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Brute03
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Default RE: Soft Pedal

i had to bleed the rear valve on the m/c a few times before my pedal felt firm
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Old 07-13-2006, 12:43 PM
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GodAmGT00
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Default RE: Soft Pedal

Lemme ask you this, did you remember to pump the brakes, after all of this was said and done, w/ the master cylinder cover off??


How about, did you grease all of your guide pins?? Are all of the pads seating correctly?? Do you know if the brake lines are crimped, or compressed in any way??


Re-bleed the car, starting at the REAR PASSENGER Side... Then go to the Rear Driver's, front Pass, then Front Driver... If you STILL have issues, then your MC may be on it's legs.


However, since it was after you've compressed the pistons back into the caliper body, it's possible, that the dust boot could be torn.

Have you checked for leaks??



JT
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Old 07-14-2006, 05:54 AM
  #5  
pete1665
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Default RE: Soft Pedal


ORIGINAL: GodAmGT00

Lemme ask you this, did you remember to pump the brakes, after all of this was said and done, w/ the master cylinder cover off??


How about, did you grease all of your guide pins?? Are all of the pads seating correctly?? Do you know if the brake lines are crimped, or compressed in any way??


Re-bleed the car, starting at the REAR PASSENGER Side... Then go to the Rear Driver's, front Pass, then Front Driver... If you STILL have issues, then your MC may be on it's legs.


However, since it was after you've compressed the pistons back into the caliper body, it's possible, that the dust boot could be torn.

Have you checked for leaks??
JT
I have pumped it a lot with the cap off and that didn't help. The lines are in good shape. I have bled each corner in the proper order 3 times. The one thing i will say is that the bottom guide pin on each rear calpier was siezed. I had to pull them both out, clean them up and re-grease them, but i dont see how that would cause the brake to feel soft. The dust boot is torn on one side where the pin was siezed. If the pin was loose(which it is on one side) would that make it soft??? I am going to try bleeding the MC also.
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