touchy and slow returning brake pedal - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 08-27-2013, 11:48 AM Thread Starter
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touchy and slow returning brake pedal

So, Ive put my old ford back on the road, but the brake pedal is really kinda touchy, and it returns pretty slow. I have good vacuum and everything seems to be working it just aint right though. The master cylinder was replaced before I bought it at a shop. Any suggestions? Could this be the booster going bad? or air in the master cylinder?
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post #2 of 9 Old 08-27-2013, 12:23 PM Thread Starter
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I just did a search and found someone else was having a similar issue and they adjusted the rears amd it fixed everything so im going to try that tonight
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post #3 of 9 Old 08-27-2013, 02:33 PM
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What do you mean by "touchy"? Does it lock up too quickly?
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post #4 of 9 Old 08-27-2013, 03:30 PM
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When my booster went bad, the pedal almost seemed to "suck" to the floor and then "delay" on the return (meaning normally it would follow my foot back, but when the booster was bad, it would not ... slight delay). Cheers!

1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.
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post #5 of 9 Old 08-27-2013, 03:38 PM Thread Starter
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Quote:
Originally Posted by Patrick Feeley View Post
When my booster went bad, the pedal almost seemed to "suck" to the floor and then "delay" on the return (meaning normally it would follow my foot back, but when the booster was bad, it would not ... slight delay). Cheers!
Ya im kinda leaning towards a worn out booster...it seems not so bad sometimes but other times i have to pull the pedal back up with my foot...dont know if that another sign of a worn out boosteror not.
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post #6 of 9 Old 08-27-2013, 07:13 PM
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Mine was never that bad. Cheers!

1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.
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post #7 of 9 Old 08-27-2013, 07:30 PM
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Quote:
Originally Posted by Patrick Feeley View Post
Mine was never that bad. Cheers!
So it wasn't that touchy, Feeley?....

Sorry...
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post #8 of 9 Old 08-27-2013, 07:57 PM
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When I had problems with my 96' the pedal acted as if there was air in the lines. Pedal real spongy but would somewhat pump up. Pedal was a little sluggish to return but not bad. If you got onto brakes hard she'd lock up the fronts. Found rear adjusters froze up. Got them freed up, greased and adjusted properly brake pedal works great and returns normal. You may have frozen adjusters but sounds more like booster problem. Good luck


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post #9 of 9 Old 08-28-2013, 11:34 AM
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Quote:
Originally Posted by madpogue View Post
So it wasn't that touchy, Feeley?....

Sorry...
Cheers!

1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.
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