My brakes are locking up on all four wheels on my 04 sentra.
I have new brake pads and shoes,master cylinder,rotors and drums turned,new calipers on both sides and wheni dive my car for about ten minutes the brake pedal becomes hard and my car will not move you have to force it by pressing down ******* the gas pedal.then the brakes start smoking.any help
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Re: my brakes are locking up on all four wheels on my 04...
Your brake light switch is adjusted in all the way and is pressing on the brake pedal. This causes the brake to be slightly applied. As you drive the vehicle the brake fluid heats up and expands, the brakes will apply more and more until you see the smoke. Bottom line: your brakes are always applied at the master cylinder because something(usually the brake light switch) is out of adjustment.
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Lift the front of your Ford F-250 off of the ground using a jack and jack stands. Remove the wheels from the Ford with a lug nut wrench to prepare the truck for servicing. 2 Open the hood on the engine compartment and take the lid off of the master cylinder that bolts to the brake assister on the driver's side firewall.3 Remove the hex-head bolts on the back of the brake caliper with a socket. With the bolts removed, pull the caliper off of the Ford's brake rotor.4 Pull the old brake pads out of the caliper and discard them. Squeeze the brake piston back into the backside brake caliper with pliers, and then insert the new pads into the brake caliper.5 Pull the rotor cap cover off the middle of the rotor with a screwdriver and use a socket to remove the nut located behind the cover.6 Pull the rotor off of the wheel spindle.7 Remove the old wheel bearings from the brake rotor and insert them into the new rotor. If the old wheel bearings are worn, replace them with new bearings.8 Slide the new rotor onto the wheel spindle and secure it using a bolt and socket. After you tighten the bolt, press the cover back onto the rotor.9 Place the caliper on the rotor and secure it with a socket and hex-head bolts. 10 Duplicate the process on the passenger side of the F-250. 11 Close the master cylinder after putting the wheels back on the Ford and lowering it to the ground. Press on the brake pedal to seat the pads against the rotor Replace the F-250's Rear Brakes 1 lift the rear of the Ford F-250 off the ground with a jack and jack stands. Remove the wheels from the Ford with a lug nut wrench.2 Place a strip of paint on the back of the brake drum and rear brake drum cover so you can position the brake drum orrectly when you put it back on. If you plan to install new brake drums on your Ford F-250, skip this step. 3 Place the brake drum puller on the brake drum and pull the drum from the wheel hub. The method for attaching the brake drum puller depends on the brake drum puller that you use. 4 Remove the springs that attach the brake shoes to the wheel hub by pulling them off with pliers.5 Lift the old brake shoes off of the wheel hub and place the new brake shoes on the wheel hub. Secure the new shoes with the springs.6 Pound the brake drum onto the axle hub with a rubber mallet.7 Duplicate the process on the passenger side of the Ford.8 Put the wheels back on the F-250, lower it to the ground and, then press on the brake pedal to seat the shoes against the brake drum.
Well, I really think you may find the problem only between two things: Caliper, pads or brake shoes, Beacuse I guess If you bought new drums you bought new shoes too didn't you? But if you're sure it is in front disk, then, you just have to check, you got the right caliper and pads and check the caliper is well adjusted and installed I hope this helps good luck!
remove tire remove caliper and pads with two bolts and adj emergency brake off all the way or untill rotor will come off .Replace shoes (if you don`t know how remove only one side and install other side the same then install remaining shoes.)If rotor or inside drum surface is rough turn or relace rotors. Adj brakes up (parking) and reinastall caliper.Pump brakes half way down only till good pedal not all the way down or the piston in master cylinder will go to end of stroke where all the gook is and you`ll replace master cylinder very shortly
pads go over a rotor, you can buy a tool to spread the pads meaning pushing the caliper piston back. if the rotor is pitted or has a lip around the outside it needs to be refaced which is done at a machine shop. i myself use a big old C clamp instead of buying a tool. be careful not to put sideways pressure on the piston or you will be buying a new caliper. i take the cap off the master cylinder when i am pushing fluid out of the caliper.
shoes go inside a drum, you get the drum turned at a machine shop, and you move the adjuster wheel down to the minimum and slowly back it out to where the drum just does not contact the shoes when put on. the shoes will settle in correctly when you push on the brake pedal so you may have to do this adjustment a few times. in the olden days the adjuster was accessible from the inside through a slot in the backing plate and you used a special adjuster or a bent screwdriver to adjust the shoes out.
1. Machine or replace rotors and/or Drums
2. New Disc Pads and /or Brake Shoes & springs for brake shoes
3. New or recond Brake Booster
4. New or recond Master Cylinder
5. New or recond Disc brake calipers and/or wheel Cylinders
6. Brake fluid
7. Check all the brake fluid lines for any damage
thats about all I can think of, hope it helps
YOU NEED REMOVE A LITTLE BRAKE FLUID FROM MASTER CYLINDER.THEN YOU RAISE VECHICLE SAFELY.SUPPORT IT WITH JACK STAND.MAKE SURE VECHICLE IS ON LEVEL SOLID GROUND.REMOVE TIRE OR WHEEL.THEN YOU NEED A LARGE C - CLAMP.PLACE C - CLAMP OVER BRAKE CALIPER AND BRAKE SHOE BACKING.TIGHTEN C - CLAMP JUST ENOUGH PUSH CALIPER PISTON BACK IN CYLINDER BORE TO REMOVE CALIPERS FROM ROTORS.TO REMOVE BRAKE CALIPER YOU NEED 2 OPEN AND BOX END WRENCHES ONE TO HOLD CALIPER SLIDE PINS AND THE OTHER WRENCH FOR LOOSEN CALIPER BOLTS.THEN YOU REMOVE CALIPER AND REPLACE FRONT BRAKE SHOES.IF YOU NEED TO REMOVE BRAKE ROTORS JUST REMOVE THE BRAKE CALIPER CARRIER SUPPORT BOLTS THE REMOVE THE BRAKE CALIPER CARRIER SUPPORT THEN REMOVE ROTOR.YOU NEED TO REPLACE BOLTS WITH NEWS AND USE LOCK TIGHT.THEN YOU PUT IN NEW BRAKE PADS IN CALIPER PUT CALIPER BACK ON SUPPORT CARRIER.REPLACE WITH NEW BOLTS USE LOCK TIGHT THEN TORQUE BOLTS TO 26 FT LBS.MAKE SURE MASTER CYLINDER COVER IN PLACE.WHEN YOU FINISH REPLACING BOTH FRONT BRAKE PADS PUMP BRAKE PEDAL TO SEAT BRAKE SHOES AGAINST BRAKE ROTORS SO YOU WILL HAVE FIRM BRAKES WHEN YOU APPLY THEM. THEN CHECK YOUR BRAKE FLUID LEVEL IN MASTER CYLINDER MAKE SURE ITS NOT LOW. MAKE SURE YOU HAVE FIRM BRAKES BEFORE DRIVING.IF YOU HAVE ANY PROBLEMS CHANGING FRONT BRAKE PADS YOU CAN GO TO ANY AUTO PARTS STORE AND BUY A HAYNES REPAIR MANUAL.
YOU NEED TO REMOVE 2/3 BRAKE FLUID FROM MASTER CYLINDER.THEN YOU WILL NEED A LARGE C -CLAMP.OPEN C - CLAMP PLACE C - CLAMP OVER TOP BRAKE CALIPER AND AGAINST THE BACK OF THE OUTBOARD BRAKE PAD. THEN TIGHTEN THE C -CLAMP UNTIL THE CALIPER PISTON IS PUSHED INTO THE CALIPER BORE JUST ENOUGH TO SLIDE CALIPER OFF THE ROTOR.WARNING WHEN FINISHING BRAKE JOB.PLACE COVER BACK ON MASTER CYLINDER.TAKE FOOT PUMP BRAKE PEDAL UNTIL YOU GET SOLID BRAKES.THIS SEATS BRAKE SHOES AGAINST THE ROTOR.THEN RECHECK BRAKE FLUID LEVEL IN MASTER CYLINDER.