Parking brake noise?

Started by Disturban, April 22, 2011, 05:26:44 PM

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Disturban

Ever have the parking brake on the inside of the rear rotor make noise? This truck has disc brakes on the rear and the pads are at least 1/2 left but when I make a slight left turn in a parking lot while going slow I can hear metal on metal sound...it has a hollow sound just like bad drum brakes. The parking brake is in fact a drum brake so I am thinking maybe some hardware broke inside or something?

Another thing is when I apply the parking brake and then release it the pedal stays right where it was at, I have to manually pull it up? Anyone ever experience anything like this? I don't think it is an axle bearing that would be more of a grinding sound and this is more of a scraping sound.

Pretty p00 p00 day so I don't think I will be pulling everything apart today...was just wondering if this kind of noise is ever caused by the parking brake or if this is a common problem?

old school truck dude

#1
There is a return spring broken somewhere, sounds like to me. Possibly on the cable? What are we working on, Toyota Tundra, Ferrari, 1972 Datsun ==dunno loll

Disturban

Quote from: old school truck dude on April 22, 2011, 08:12:12 PM
There is a return spring broken somewhere, sounds like to me. Possibly on the cable? What are we working on, Toyota Tundra, Ferrari, 1972 Datsun ==dunno loll
My wifes truck, she said it was making a noise in the parking lot...I don't think it has a return spring though, I went to the parts store to look at all the parts and the E brake shoes are bonded to a big circle looking thing with about a 3" gap in it, I guess something goes in that gap and spreads the whole unit apart when the cable is pulled.

I replaced the pads and rotors a few years ago but did not pay much attention to the E brake assembly...I am worried that it might be a bad axle bearing though and shifting sideways in a turn just enough to let the E brake shoe rub in the inside, I don't want to pull an axle right now.

Eroq

rip that internal rotor parking brake crap right off! all it'll do is make noise no matter what ya do. been there done that a million times  haha

Disturban

I just took it all apart and my back pads are almost gone, there was a bunch of dried up mud in everything and the dust shield is rusted so bad it is out of shape, so I think one of those issues if not all of them is causing the noise.

However I have a little play in the axle it's self, maybe 1/32nd up and down how much tolerance is allowed for the axle bearing...is it time to change it? I can also move my axle in and out with a good 1/4 play, is this normal or is the c clip or slot on the axle for the c clip getting worn out and need to be replaced?

Disturban

Screw it I am going to just slap some pads on it today, clean everything up and take of the rusted old dust shields...from google I learned that C clip axles it is normal to have a little play in them, the bearings are not making any noise so I am guessing they are good.

old school truck dude

They supposed to have some play in and out, but definitely not up and down. Id think about puttin bearings in there, if they go bad it might ruin the axle housing, then you gotta have a whole rear end.  ;D

Disturban

#7
Quote from: old school truck dude on April 23, 2011, 01:39:05 PM
They supposed to have some play in and out, but definitely not up and down. Id think about puttin bearings in there, if they go bad it might ruin the axle housing, then you gotta have a whole rear end.  ;D
I cant really tell if there is play up and down, I think it just messed with my head because of the in/out movement, you need to slide the axle in through the bearing so it is not going to be a 100% tight fit or you would never get the axle in there unlike a bearing that is pressed on...so there has to be a little movement.

Disturban

Well if it is not one thing it is another...pulled everything apart today and the parking brakes are fine, the rear pads are gone though, they just started to hit the rivets so that is where my noise was coming from, I replaced the back pads and the rotors still look good but now my back brakes are sticking so bad the wheels are getting too hot to touch and the brakes are smoking, wtf?

Only thing I can think of is the pistons was so far out all the time because of the pads being all used up that they have a bunch of gunk/rust or other crap on them they just don't release properly...off to autozone, lucky for me new rear calipers are only $40 each, hope this fixes the problem!

Disturban

Well solved this issue now...turned out to be the pads, the little ears that slide in the spring clips had lips on them from the stamping process (Probably a dull die) and that kept them from sliding easy inside the clips, so I took a die grinder with a burr bit and took that lip off on all the pads so they move freely and what do ya know, no more smoke and my wheels are not hot enough to fry an egg on after going around the block.

old school truck dude

Cool! Lotta brake stuff has to be fitted to make it work the best..

Disturban

Well scratch that last comment I made, they are still dragging but not quite as bad, has to be the calipers and or hoses, I will replace both and see what happens...feels like it has a 4cyl in it right now ==roll

old school truck dude

The rubber brake hoses can get restrictions in them, Id replace them 1st before the calipers..

Disturban

Quote from: old school truck dude on April 25, 2011, 12:50:22 PM
The rubber brake hoses can get restrictions in them, Id replace them 1st before the calipers..
But why would both hoses go at the same time? I am thinking calipers because the pads was so low the pistons was out all winter long getting corroded then when I pushed them back in all the crap that accumulated on them is making them stick...that's my theory anyway.

I was planning on changing the hoses also just in-case and it does make economical sense to try them first because they are cheap and if it fixes the problem we will call it a day, I however don't think it will.

RIP_K52007

pop the pistons out of the calipers n cleanem up with some emery cloth and reinstall them, easyest way to get them back in is to put a air chuck to where the brake line goes in the caliper, that way you can get teh seal right on the piston. save ya the $80.

Disturban

#15
Quote from: lilred on April 25, 2011, 07:42:43 PM
pop the pistons out of the calipers n cleanem up with some emery cloth and reinstall them, easyest way to get them back in is to put a air chuck to where the brake line goes in the caliper, that way you can get teh seal right on the piston. save ya the $80.
I will spend the $80 just for the warm fuzzy feeling of knowing it has new seals...if it was a trail rig or something I would do it that way however this is a daily driver that my wife always has kids riding with her. It is a 2000 so the seals and boots are 11yrs old I just feel more comfortable replacing them. If I could find out what size bore they are I might rebuild them but I don't think I would save a whole lot of money not to mention my time.

RIP_K52007

true, i was just looking at it from my point of view not having the $80 ==roll

Disturban

Quote from: old school truck dude on April 25, 2011, 12:50:22 PM
The rubber brake hoses can get restrictions in them, Id replace them 1st before the calipers..
I was thinking outside the box and thinking about the hoses that go to the calipers...never thought about the center hose that goes from the frame to the axle, if that hose is restricted it could cause both calipers to not release...going to change that one first.

Uncle Steve

Quote from: Eroq on April 22, 2011, 11:51:19 PM
rip that internal rotor parking brake crap right off! all it'll do is make noise no matter what ya do. been there done that a million times  haha

the backing plates rot to and make a lot of noise
==bgmS 10 Blazer with 31"s chevvv

Disturban

Quote from: Uncle Steve on April 25, 2011, 11:59:05 PM
Quote from: Eroq on April 22, 2011, 11:51:19 PM
rip that internal rotor parking brake crap right off! all it'll do is make noise no matter what ya do. been there done that a million times  haha

the backing plates rot to and make a lot of noise
The pads was gone, that was the noise...now the issue is with the new pads my brakes are sticking.
Process of elimination in progress ==roll

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