05 Tahoe Rear Brakes Help

[kwOH]

My rear brakes have been squeaking something awful when u just barely slow down so I replaced rear pads and rotors and adjusted the parking brake shoes, i was going to replace the backing plates but decided to just clean and grind away some rust off the old ones to try to get them to stop squeaking, anyway no luck, they seem to be squeaking just as bad maybe even worse now, any help would greatly appreciated.


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[gunslinger]

Are you putting brake grease on the shims? Make sure your brackets holding your pads are good and tight. If you hear a squeal it's likely vibration. If it's a squeak when you just start rolling at a traffic light or at very low speed it's likely the composition of the pad and nothing to worry about. I've noticed the low speed squeak is worse with certain ceramic pads.

 

[kwOH]

Are you putting brake grease on the shims? Make sure your brackets holding your pads are good and tight. If you hear a squeal it's likely vibration. If it's a squeak when you just start rolling at a traffic light or at very low speed it's likely the composition of the pad and nothing to worry about. I've noticed the low speed squeak is worse with certain ceramic pads.

Definitely a squeal, a long annoying squeal, I'm going to get back in it right now and put silicone on the outer pad and grease the top and bottom notches of the pad and grease the caliper slides, hope this solves the problem.


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[gunslinger]

Yea I had the same issue and the grease fixed it. I also rub a little grease on the part of the piston that touches the pad. That seems to keep the pad cleaner. You should be good to go after the grease. I put thermo quite wagner pads on mine and they squeeled like a pig. Got the house brand at autozone and never had a problem.

 

[kwOH]

So everything is greased up, piston, slides, notches, shims, and still gettin a squeal, its just got me stumped and pissed lol no clue whats going on


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[ATIII]

So everything is greased up, piston, slides, notches, shims, and still gettin a squeal, its just got me stumped and pissed lol no clue whats going on


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Grind the edges of the pads. Take the sharp edge off of them. That's what is dragging on the rotor.


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[iLikeEggs]

What type of pads are you using? Metallic, semi-metallic, org-aaaaaanic? Cheap pads are usually at least semi-metallic. Cheaply constructed pads will give the most annoyance...guaranteed.
Try a ceramic pad, but with either fresh or re-surfaced rotors. Also, be sure to use the new clips if you mangle your old ones. Quick trick...removing the caliper brackets makes the clips easier to install. Only a few minutes more work.

Cheers.

 

[kwOH]

What type of pads are you using? Metallic, semi-metallic, org-aaaaaanic? Cheap pads are usually at least semi-metallic. Cheaply constructed pads will give the most annoyance...guaranteed.
Try a ceramic pad, but with either fresh or re-surfaced rotors. Also, be sure to use the new clips if you mangle your old ones. Quick trick...removing the caliper brackets makes the clips easier to install. Only a few minutes more work.

Cheers.

I used AC Delco, brand new rotors, brand new ceramic pads, brand new clips


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[iLikeEggs]

The rotors surfaces are probably glazed. Have them resurfaced. You may have some success with a drill and a sanding wheel but that will only work temporarily as it won't remove enough material.
Sand down the surface of the pads as well. Then once it's all back together do a series of hard but steady stops to re-seat the pads.