Having problems with brakes when i put brake on brake pedal is hard, an i hear a noise before i put brakes on an then brakes don't want to work some tell me its the abs system others tell me no its something else
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Re: 2004 GMC sierra 1500 4x4 brakes
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.
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Jack, wheel wrench, socket set, large screw driver, pair of pliers or grips. Lithium grease for the pins. Watch all of these videos.
FRONT END SHIMMY AND SHAKING COULD HAVE A TIRE OUT OF BALANCELOOSE OR WORN WHEEL BEARINGS, WORN OUT BALL JOINTS,WORN OUT TIE ROD ENDS, FRONT END NEED ALIGNMENT.BRAKE ROTOR WORN OUT OR WARPED, MANY THINGS WILL CAUSE FRONT END TO SHAKE SHIMMY.
That is usually caused by warped rotor discs. I know you said you just put on new ones, but has anyone put new tires or removed and replaced wheels on your truck. I have seen in the past, when they overtightin the lug nuts it warps the rotors.
All mechanics I have seen installing wheels have over torqued them.
Rear brake shoes as fitted to drum brakes can typically last up to 60k miles with periodic adjustments, but you have rear disc brakes and the shoes will typically last half of that.
Also, modern brake pads no longer contain asbestos and are now made using harder metallic compounds; the direct result is that brake discs (US=rotors) are also considered to be consumable items as they are worn down by the harder pads. It's not unusual to have to replace front discs every other pad change and rear ones with every pad change; in both cases the mileage will typically be around 30k miles on most models.
No you don't. All you need to do if you have disc brakes is take the wheel off and then take the two bolts off holding the brake caliper on, and you have it off, thn you can replace the brake pads compress the piston on the caliper, put it back on the rotor, put the wheel back on and your done. Check the rotors out to see if they are smooth and not too much of a lip on the outside of the rotors. If they are too rough, the you replace them by taking too more additional bolts that hold the bracket the brake caliper bolts two(2 more bolts) and then tap the rotor loose with a hammer, replace.
I have replaced the front disc brakes on quite a few vehicles and just replacing the pads when you know what you're doing will take you 30 minutes tops. Add another 10-15 minutes if you replace the rotors.