My brake pedal can get pretty low to the ground when i brake, is it time to get new pads or is there something wrong with the brake pressure system, if so, let me know what i can do if anything. Thx!
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Re: Loss of Pressure in Brakes
Most likely time for some new pads/shoes and check rotors/drums
The things you should check are:
1. Fluid level in the master cylinder, if this is low you have a leak somewhere and it needs to be fixed, if it is a '96 it could have a leak in a caliper seal or a wheel cylinder and it would be tough to see.
2. If it has been a while since you have changed them check your pads/rotors for wear
3. If the pads are good, bleed the air out of the system. however air in the system usually causes the pedal to feel "spongy" and not just sink to the floor
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Did you also change the brake pads? Add fluid to top of reservoir?
Was the brake pedal low before you changed the calipers or is this something that developed after you worked on the car? If it was there before the caliper change then it has nada to do with the work you did.
You may not have done anything wrong. You won't have any pressure the first couple of times that you press the brake pedal. Try pumping the brakes a few times. When you change the pads you have to open the caliper all the way up to get the caliper back on. When you press the brake the pads won't go all the way to the caliper on the first couple of times you press the brake. But once you pump the pedal, it should build up pressure. If not you will have to bleed the brakes.
No, but could be pad knock back which can be caused by run out of the rotors. This can happen if your pads have worn down too far in the past. I'd advise you to have the rotors ground (on the car) and new pads fitted. The fronts are critical but have the rears checked for run out too. Sometimes new seals in the calipers can help hold the pads against the rotors.This will improve the loss of pedal condition.
does it still brake when the pedal goes to the floor. my guess is it is leaking fluid out of the rear brake cylinder. the rear brake cylinders are in side the drums so you may not notice a leak there.i would take off both rear wheels and take the drums off and see if there is a leak out of the seal on the brake cylinder. that is a fairly common problem with all drum brakes and the cylinders are only about 12 bucks at napa.
Something doesn't sound right, you shouldn't have to remove the brake line to install pads. Did you have to do this on both sides? Do the new pads and the old pads look the same? Did you get the caliper on crooked? Just recheck your work first before replacing more parts. When you install the caliper, You have to hook the pad on one side first before you slide it over the rotor.
Have you checked the hardware on the disc brakes all the way around, as well as checking the rear pads? Wore out hardware could cause you to require more pressure to get the pads to move, as well as low brakes on the rear. Your braking system sends more pressure to the front of the vehicle because it requires more pressure up there. Less pressure on the rear can cause this to happen. I'm willing to bet the problem from the pedal is coming from the rear brakes somewhere and not the front. The last possibility that I can think if is a problem in the ABS solonoids, they might not be opening up all the way causing you to require more pressure.
Last time I had a low brake pedal, the wrong front wheel bearings were installed. Ford Dealer did not want to own up to it, but put the right bearings in and all fixed. Hand brakes? The factory used a small diameter drum on the pickups (even though the main rear bake is a disk). The parking brake pedal has to do full travel to hold the truck. It is just a pedal, cable and shoes so something is wrong with one of them. If this is a hand brake on the transmission, I don't know what to say except that it is still pretty simple.