Need help with brake problem
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New User
Joined: Feb 2004
Posts: 13
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Need help with brake problem
I just bought a 1992 F250 XLT with the HD package Nice truck but the brakes suck!! New rotors in front with new shoes and pads! This work was done by the preivous owner! The issue is if you need to stop you must pump the pedal quite a few times to get the vehicle to stop, on panick stops the pedal goes to the floor! Now sometimes theres pressure but most of the time there is none! I've bled the whole system and still not much improvement! Have checked for leaks and have kept it topped with fluid! I know th RABS valve could be bad but the symptoms
I have found on this site and others dont quite match what mine is doing! I bought a new master cylinder, should I replace it and see what happens?? If anyone has any Ideas for the new guy!
I sure would accept them!!!!
Thanks
Rayolight
I have found on this site and others dont quite match what mine is doing! I bought a new master cylinder, should I replace it and see what happens?? If anyone has any Ideas for the new guy!
I sure would accept them!!!!
Thanks
Rayolight
Hotshot
Joined: Oct 2003
Posts: 17,791
Likes: 99
From: Ashland City, TN
Rear brakes are supposto be self adjusting when you use them in reverse.
as for the pedal havein no presure, definatly a master cylinder problem.
and remember, RABS IS REAR ANTI LOCK BRAKE SYSTEM.
Only for the rear, not the front.
and it never works anyways. but ABS is junk most of the time.
as for the pedal havein no presure, definatly a master cylinder problem.
and remember, RABS IS REAR ANTI LOCK BRAKE SYSTEM.
Only for the rear, not the front.
and it never works anyways. but ABS is junk most of the time.
Lead Driver
Joined: Nov 2002
Posts: 9,555
Likes: 40
From: Concord, NC
The rear shoes must be adjusted manually after a brake job to get them close. As for RABS not working most of the time, just remember that these trucks are 8-17 years old, and things go bad over time. I don't think that everyone's abs is broken, and when working properly, it certainly isn't "junk."
Post Fiend
Joined: Oct 2003
Posts: 6,214
Likes: 13
From: New Jersey
and remember, RABS IS REAR ANTI LOCK BRAKE SYSTEM.
Only for the rear, not the front.
and it never works anyways. but ABS is junk most of the time. [/B]
Only for the rear, not the front.
and it never works anyways. but ABS is junk most of the time. [/B]
What I don't understand is why only on the rear. I realize the back is lighter than the front thus more prone to lockup, however its an absolutely bizarre "feature" to lock the fronts up, but not the rears.
Me, I yanked the cable off the ABS module and took the light bulb out of the cluster. I'm perfectly capable of pumping the brakes the "old fashioned" way.
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Senior User
Joined: Jun 2003
Posts: 352
Likes: 1
From: Tillamook, Ore
I got in a rush when I put new shoes on my F250, and didn't adjust them up close. My pedal went to the floor and couldn't hardly stop. I figured the self adjusters would tighten them up, but no go. Had to do it manually then all was good.
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Lead Driver
Joined: Nov 2002
Posts: 9,555
Likes: 40
From: Concord, NC
I think the logic with only rear abs is that keeping the rear from locking up will keep the truck in a straight line. If the rears locked up, the back end would catch up with the front, which would not be pleasant, especially with a trailer.
Senior User
Joined: Jan 2004
Posts: 114
Likes: 0
EPNCSU is correct, if the booster is bad the brake pedal is like a rock, almost need to use both feet the depress the pedal. The master cylinder has a seal on the back side that could leak fluid into the booster, check to make sure your not losing fliud that way. Also check to make sure the proportioning valve on the frame is working.
