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post #1 of 7 Old 10-06-2012, 03:59 PM Thread Starter
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No brakes

Today while driving I would push down on the brake pedal have brakes for a second then the pedal would hit the floor. Eventually the pedal would go all the way to the floor and I would have to push as hard as i could to get the truck to coast to a stop. The brakes would also take a second to disengage and the pedal was slow to come up. All levels are good with no leaks. Can anyone point me in a direction of what may be wrong with the truck

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post #2 of 7 Old 10-06-2012, 07:04 PM
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Break booster might be bad.

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White 04 F350 Lariat SRW/CC/LB/FX4 227,XXX+
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Edge insight CTS EGT/Turbo timer/FP SCT with ? Tune
Powermax w/KC billet wheel Warren 175/30%
5-8" MBRP Off Road Turbo Back/harpoon
2" Leveling/33' BFGATKO
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aFe Stage2/EGR Delete


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post #3 of 7 Old 10-07-2012, 03:08 AM
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You could have a pin hole in one of the brake lines.
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post #4 of 7 Old 10-07-2012, 05:29 AM
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My vote is also on the brake booster. You noted that your fluid levels are good and steady so that would, to me, eliminate a leak in a line or at the calipers.
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post #5 of 7 Old 10-07-2012, 06:24 AM
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If he had whole anywhere in the system he would be losing fluid.

Sent from my SPH-L710 using AutoGuide.Com Free App

White 04 F350 Lariat SRW/CC/LB/FX4 227,XXX+
Studs/BPD58V FICM Atlas40/BPD oil cooler/waterpump/7.3 fan
Edge insight CTS EGT/Turbo timer/FP SCT with ? Tune
Powermax w/KC billet wheel Warren 175/30%
5-8" MBRP Off Road Turbo Back/harpoon
2" Leveling/33' BFGATKO
ELC/PMM Coolant filter
aFe Stage2/EGR Delete


Semper Fidelis (Always Faithful) is the motto of the Corps. That Marines have lived up to this motto is proved by the fact that there has never been a mutiny among U.S. Marines.
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post #6 of 7 Old 10-07-2012, 07:20 AM Thread Starter
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How do I tell if the hydroboost or the master cylinder is shot.

2004 F350 6.0 egr delete, arp studs, sinister coolant filter, 03 turbo, sct "bama" with looney tunes by Vivian

SOLD - 2003 f350 6.0 with 08 motor
5in diamond eye turbo back

SOLD- 1999 f350 7.3 with zf6


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post #7 of 7 Old 10-07-2012, 07:39 AM Thread Starter
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Ok I found a small leak under the brake pedal

2004 F350 6.0 egr delete, arp studs, sinister coolant filter, 03 turbo, sct "bama" with looney tunes by Vivian

SOLD - 2003 f350 6.0 with 08 motor
5in diamond eye turbo back

SOLD- 1999 f350 7.3 with zf6


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