Question about 1993 Ford F250

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The brake lite and ABS lite are on while driving,

1993 Ford F250 Diesel pick up
the brakes also went spungy when this happened, had a new master cylinder installed but the problem didn't go away.

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When was the last time you bled your brake system? Spongy brakes are almost always beacause of air in the lines.

Posted on Mar 12, 2009


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I relaced all brake pads on 2003 buick bleed brakes very little air my brake peddle still spungy and anti brake light stays on

you must re-bleed the system properly, especially the back brakes. Bring your vehicle to a local autozone to reset the ABS light or check for an ABS fault code and post it on fixya!!

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If you don't have an ABS lite on then its the Master Cylinder. If you have an ABS lite then use a scanner and get the code to the defective item's circuit. Do repair accordingly. If brake lite is on then its probably the Master cylinder its not letting plunger return to release position and brakes are dragging.

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sounds like a bad master cylinder, next time brakes are locking up , open bleeder screw and see if that releases brake at that wheel if it does then replace master cylinder, good luck.

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Your brake master cylinder is faulty.

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1993 f250 7.3 diesel - hard pedal, hard to stop,

Check front calipers, caliper should "float" to be self centering. If the caliper is stuck only the inside pad is pushing on the rotor instead of the caliper pinching the rotor. You will need to remove the caliper from the assembly, there are usually rubber boots to keep out the dirt and water from the slide pins, they are ofter cracked/broken or missing altogether. You may need a small torch and some rustbuster to get things moving again.

May 19, 2009 | 1993 Ford F250

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Just replaced master cylinder on 1990 aerostar and bled the brakes, still the pedal goes to floor and i have no brakes

Did you bench bleed the master cyl. before installing it? then when you installed the new master, did you bleed all 4 points? If yes, then check all for points for leaking caliper/s and leaking wheel cylinder/s. If the van has ABS, check the valve body for a bleeder screw and see if air bleeds out of it. If you've checked everything twice and did everything right then your new master cyl. may be defective.

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Without any reason the "ABS failure ligth" came up car drives

your brakes will work just fine. the abs light means your car will not have abs. if you are ok driving your car without abs then dont worry about it. if you drive in a lot of snow or just want abs then i would take it to be serviced. it could be something like a wheel sensor that went bad or bad wire or you abs or if you replaced a caliper or something like that it could just be air in the lines but then you would notice that the brakes are spungy. it might not be a bad idea just to check the fluid level and go from there.

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if you are getting an intermittent soft pedal you may have a problem with the abs or master cylinder. try unplugging the fuse for the abs and see if the problem goes away. (FYI if you do this your abs light will come on and you will have no abs function until you reinstall the fuse)

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1993 F350 ABS light

i had a problem with my abs light one night i had a brake line behind the driver front tire broke and it was leaking out all of the fluid and the abs light came on i replaced the line and filled up the master cylinder and it went away so check your lines and master cylinder

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