Brake Problems...need Help
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Brake Problems...need Help
I have a 1985 FORD F-250 with 2.5 inch brake shoes on rear drums. The brake calipers needed to be placed because they were sticking so I replaced them and bled the the brake lines to them good. The brakes seem still seem not to work too good as you have to push the brake pedal so far down to get the brakes to work. I stll think something is wrong somehwere. I dont think its in the front brakes anymore as I replaced the calipers and the pads. Can there maybe be air in the back brake lines too since I opened the front? I didnt bleed the rear brakes. Can the master cylinder not be operating good enough? How do you tell if you need a master cylinder replaced? Can it be the power booster maybe. How do you know when you need a poer booster?
A good brake pedal is when you dont have to psh down to far on power brakes ..right? Thise brake pedal has to be pushed down way down to work but not the way it should it seams.
PLEASE HELP
A good brake pedal is when you dont have to psh down to far on power brakes ..right? Thise brake pedal has to be pushed down way down to work but not the way it should it seams.
PLEASE HELP
Last edited by shortblock2000; Apr 6, 2005 at 11:39 PM. Reason: bigger letters
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Joined: Oct 2004
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From: Fleming Ga
Usually the height of where the brake pedal engages the brakes is determined by the adjustment on the rear brakes. Try adjusting the rear brakes. Wouldn't hurt to bleed the rears also especially if you allowed the master cylinder to go empty while changing the calipers. Were you adding fluid to the master cylinder before changing the calipers? Normally if the master cylinder is going bad you can see traces where brake fluid ran down the power booster between the master cylinder and booster. Else, after adjusting the rear brakes, crank the truck and hold steady firm pressure on the brake pedal. If the pedal goes slowly to the floor then if the rear wheel cylinders are not leaking, the master cylinder is leaking by and needs replacing.
Senior User
Joined: Dec 2001
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From: b.c. canada
Even tho the pedal has lots of travel it still stops fine right??
This is caused by the rear brakes not being adjusted tight enough. Do you know how to adjust them???? If not we can help..jack the rear wheels up and tighten up the brakes untill you feel some resistance as you turn the wheel.. not much resistance you dont want the brakes to drag.
-gbm-
This is caused by the rear brakes not being adjusted tight enough. Do you know how to adjust them???? If not we can help..jack the rear wheels up and tighten up the brakes untill you feel some resistance as you turn the wheel.. not much resistance you dont want the brakes to drag.
-gbm-
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no the truck doesent brake like it suppose too. if you step on the pedal really fast and hard the brakes should lock up the tires...right....they do not do this
Last edited by shortblock2000; Apr 7, 2005 at 10:36 PM. Reason: misspelled
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whenever you open the brake system, you ALWAYS
must bleed all the lines.
do them in this order: RR,LR (check fluid level) RF,LF
a bad booster will hiss (vacuum leaking from diaphram)
if your booster is good, and you've bled your brakes enough to be SURE there isn't air in the lines, AND the brakes are still soggy, then you're mast. cyl is dead or dying.
must bleed all the lines.
do them in this order: RR,LR (check fluid level) RF,LF
a bad booster will hiss (vacuum leaking from diaphram)
if your booster is good, and you've bled your brakes enough to be SURE there isn't air in the lines, AND the brakes are still soggy, then you're mast. cyl is dead or dying.
