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Metal scaping sound from the rear brake - pads are
2001 Chevy Suburban 1500 4 wheel drive metal scaping sound from the rear brake - pads are good - appears to be coming from the parking brake assy, what might that be?
Re: metal scaping sound from the rear brake - pads are
Parking brake assembly inside the rear rotor/drum is worn out and scraping the drum. The brake cable could be sticking on, and if so will need replaced.
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Sounds like the brake pads may be worn out in the front. Make sure that there is not metal to metal contact that may score the rotors. Also, check the shoes and drums for the rear brakes if so equipped.
If you need instructions on how to disassemble, let me know.
GM rears are known for this noise it is usually caused by a pinion bearing that is coming apart or what they call bernelling ( I am not sure I spelled that correctly) it is little pits in the cones in the bearing it comes from lack of lubrication or the pinion seal leaking,you could pull the rear cover and drain the fluid into a dark pan and look for debris or alot of silver color.
On your parking brake assembly is a single wire switch. You can unplug it, but you will have to remember not to drive with it set. To replace the switch the whole assembly will have to come out. The switch is about $20 and labor should run about two hours. Good Luck
on disc brakes there is a metal marker on them that when the pads get low on material it will make a squeeling noise to let you know its time to change the pads.. so I would say you are in need of front pads also even though they look good you are getting low.. this marker is designed to let you know its time before you get to metal to metal .. jerry
It sounds like the rear calipers are bad. Raise the rear wheels and see if you can turn the tires. If you can't, open the bleeder. If you still can't replace the caliper. If you can turn the wheel after you open the bleeder, replace the brake hose to that wheel.
more then likely, the front rotors are warped up from stopping too fast...pull wheels calipers and rotors off. take to local garage to have them turned smooth.. they cost about 10 or 15 each to have that done... also change the brake pads.
Hello;
The parking brake cables may be stretched and in need of adjustment. Follow the cables along to a nut. Then you can tighten the adjusters up on both sides until you have the proper tension. Also make certain none of the brackets are bent or broken that the cables ride through.
Thanks;
RPM Northwest
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