Do I need to replace brake pads?

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  #1  
Old 10-02-15, 09:56 AM
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Exclamation Do I need to replace brake pads?

Had some noise coming from the brakes on the 01 Chevy Venture. Pulled off all 4 wheels and checked. Rotors and drums look good, no grooves or uneven wear. Shoes look great as well, plenty of life left. I picked up a set of pads, but the existing ones donít look took bad either! Just looking for a second opinion.

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  #2  
Old 10-02-15, 10:08 AM
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There is no need to install the new pads yet. Look for small ridges on the disc itself, at the edges. Sometimes that can cause a squeak. Describe the noise that you heard.
 
  #3  
Old 10-02-15, 10:19 AM
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Nope, pads look fine to me.

Can you tell if the noise is coming from the front or back? Left or right?
 
  #4  
Old 10-02-15, 10:24 AM
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It sounds more like a grind than a squeak/squeal. Itís the wifeís van, so I donít drive it much. Iíll take it out for a spin after i put it back together.
 
  #5  
Old 10-02-15, 11:12 AM
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If you hear a grinding sound, recheck the rear wheels especially, if you hear it when you apply the brakes. The front pads that you showed us look good.
 
  #6  
Old 10-02-15, 11:27 AM
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Now thereís a loud noise coming from the rear passenger wheel, only when van comes to a full stop. Wouldnít call it grinding, more like a lot of friction/vibration. Maybe some thing was slightly out of place when I put the drum back on? I never took apart the rear brakes. And like I said, the shoes look great.

https://www.youtube.com/watch?v=x1dKpIqnGE0
 
  #7  
Old 10-02-15, 11:31 AM
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I'd remove the drum and recheck, maybe a spring or other piece come loose or got bent slightly.

Brakes can squeal for numerous reasons other than being worn. Dusty rotors will sometimes make noise until they get cleaned up.
 
  #8  
Old 10-02-15, 11:34 AM
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Swap the drums. See if the noise stays, on the same side. You can try the same thing wit the tires.
 
  #9  
Old 10-02-15, 12:17 PM
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Took off the noisy wheel, cleaned it, checked everything. Looks fine. Next step is switching the drums. Boy, do I need a hydraulic jackÖ

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  #10  
Old 10-02-15, 12:39 PM
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Maybe it's a right rear wheel bearing ?

How many miles on that rig ?
 
  #11  
Old 10-02-15, 01:15 PM
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I’ve been using PB blaster to clean and lube, dunno if that matters. Switched the drums. Still the same noise in the same place. This wheel seems to have a little less resistance when I spin the drum. Could it be an adjustment issue? A weak spring?

It's got 153k, but the noise only happens when the wheel finally stops. I've noticed there are weights on the drums. Could it be a balance issue?
 

Last edited by MIdCityChef; 10-02-15 at 01:33 PM.
  #12  
Old 10-04-15, 11:58 AM
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Its not a balance issue going that slow. Sounds like brake chatter. Sand the hell out of those shoes and see what happens.
 
  #13  
Old 10-05-15, 08:47 AM
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Sand the shoes- got it. I'm assuming a 120 grit or so? What about the drums?
Thanks!
 
  #14  
Old 10-05-15, 09:34 AM
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Did that. Little to no improvement. I used 150 grit. maybe i should use 120 or 90 or such?

This is getting very frustrating. All i did was take the drums off, spray some pb blaster in the works and wipe off as much dust and muck as i could. The adjusters are connected to the parking brake for this vehicle. Iím sure the parking brake hasnít been used in a few years. Could the shoes be maladjusted?

I havenít checked the brake fluid level either. Wife says the brakes donít seem to be working as well either. Just spitballing hereÖ
Thanks
 
  #15  
Old 10-05-15, 10:07 AM
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"All i did was take the drums off, spray some pb blaster in the works and wipe off as much dust and muck as i could"

I hope you didn't spray any blaster on the shoes !!
 
  #16  
Old 10-05-15, 10:26 AM
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Because if I didÖ Whatís my solution? SHould I run out and grab a can of brake cleaner? sand the shoes more?
 
  #17  
Old 10-05-15, 11:07 AM
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yes would try cleaning the drum and shoes off with brake clean and adjust them to where they each have a slight drag when turning the drum.
unfortunately sometimes you do have to replace shoes and resurface or replace drums to fix brake noise even though they appear to have a lot of life left in them just not worth messing with when parts don't cost that much might be a good idea to do wheel cylinders and springs while your there.
 
  #18  
Old 10-05-15, 03:21 PM
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Jacked it back upÖagain. Even hit craigslist, bought a hydraulic jack. It wonít lift high enough

Got a bottle of brake cleaner, hit everything well. Adjusted the springs so theres some drag. Sanded the shoes, again.

Still noisy. Guess Iíll head to autozone to grab some parts. Hereís the extra fun part. They only have 1 cylinder and 1 set of hardware for my vehicle.
Maybe iíll cheek napa or advance.

Thanks for all the help.
 
  #19  
Old 10-05-15, 05:02 PM
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It wonít lift high enough
Is it a floor jack or a bottle jack? It has to go under the axle or control arm. You can't lift it from the chassis.
 
  #20  
Old 10-06-15, 03:05 AM
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Also check the hydraulic fluid level on the jack, if it is low it may not lift a load all the way up.
 
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