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post #1 of 10 Old 03-18-2008, 10:46 AM Thread Starter
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Soft spongy brake peddle

I bought new calipers hoping that would fix the problem since I couldn't bleed the old ones. I bled the new calipers but I still have a soft spongy peddle and the back brakes want to lock up on me.

anyone have any suggestions?

This is on the 1995 2wd

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10

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post #2 of 10 Old 03-18-2008, 11:02 AM
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bump, i just did this in my 99, i wonder if its a power asst problem, or if you have power asst?



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post #3 of 10 Old 03-18-2008, 11:11 AM Thread Starter
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Originally Posted by cchase View Post
bump, i just did this in my 99, i wonder if its a power asst problem, or if you have power asst?
I thought that was the original culprit and changed the booster for $99 so it has new booster, new MC and new calipers.

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10

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post #4 of 10 Old 03-18-2008, 11:15 AM
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Check the rear brake cylinders. Mine had the same problem. I never saw any fluid in the drums, but one of the pistons came off of the brake shoe and was giving me the soft pedal. Of course that was after a new MC and front brakes. Live and learn, I guess

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'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips, 4" DIY intake w/ AEM filter, Wicked Wheel 2, 360° thrust bearing, Homemade E-fuel conversion, Wildman Chip, 160cc DIY injectors , DIY IDM mod) 230K and counting...
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post #5 of 10 Old 03-18-2008, 11:15 AM
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Look under the master cylinder for fluid leak running down the powerbooster, it may cause the paint to soften and get bumpy.
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post #6 of 10 Old 03-18-2008, 11:24 AM
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If you don't have low fluid (1/4" from the top of the Master is full) then you have air and/or moisture in your brake lines SOMEWHERE. As for the back brakes, any leakage will cause lock up. If the shoes get soaked in brake fluid they get hard and the rear brakes lock up but not the front. All the hardware should be replaced: springs, wheel cylinder, shoes, all but the drum and backing plate probably.

Hope that helps.

Old Truck: 00 F350 XLT DRW: basic first few mods. S&B, 4" straight pipe, gauges, CCV, EBPV and Wastegate line deletes, LED Sills, sweet custom headlights, smoked cab lights, Ventshades, Tint.
Traded in at 196k miles.

"Brand Newish" Truck: 02 Chevy S10 2.2L 5sp. Reg cab 4x2. Badass custom made shifter, foglights, 20% tint, AVS Vent-shades, Stock Intake mods, Electric Fan conversion .
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post #7 of 10 Old 03-18-2008, 11:28 AM Thread Starter
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I just recived a phone call from my mechanic buddy and he said to check the ABS thing on the frame rail underneath the driver seat.

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10

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post #8 of 10 Old 04-09-2008, 08:22 AM
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F-250 for sale

Love, Do you have pics of 95 anywhere?? Do you still have it and where are you located?? I am definitely interested..
Thanks Dum

Powerstroking

Last edited by dumokie; 04-09-2008 at 08:24 AM. Reason: incorrect year
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post #9 of 10 Old 04-14-2008, 04:35 PM Thread Starter
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Originally Posted by dumokie View Post
Love, Do you have pics of 95 anywhere?? Do you still have it and where are you located?? I am definitely interested..
Thanks Dum
I'm in Cincinnati


I do get lock up in the rear so I believe I'll be replacing the hardware and shoes.

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10

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post #10 of 10 Old 04-14-2008, 06:16 PM
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Loves 250

Ok I am confused. which is easy for me.. I thought I saw you or someone post a F-250 for sale somewhere?? Was I hallucinating?? If not, will ya give me link or info on truck. Cincy is not a problem for pick up..


Okaayyy there it is on last post.. What is status of that vehicle??? Sorry guys I have been drop dead tired lately, fuel prices killing me so have to work more........

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Last edited by dumokie; 04-14-2008 at 06:18 PM. Reason: added line
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