brakes grinding when coming to stop help!!!

[s13irdie2]

i just changed my pads a week ago and my brakes started grinding when coming to a stop at slowspeeds. its really loud and sometimes theres a clunking sound. it looks like its coming from the front. i searched on this and most people said to get new calipers so i got them today and put them on. after driving for 30 mins., it started grinding again. would the rotors be bad? i just resurfaced them 2 weeks ago and im pretty sure i havent warped them. what else would cause this? thanks any help is appreciated.

[papershot]

did you bleed the brakes?

[Silverbullet]

even tho your rotors were just resurfaced, check for run out anways just in case. If not, its quite possible its the calipers. I am not too certain if theres a trick to test calipers.

[ledzeppelin240]

ROTORS DON'T WARP. It's THICKNESS VARIATION.

Did you force the pads in when changing then? Or did they slid in with ease? Is there a vibration, soft pedal, low pedal? Do the rotors look fine and are the sliders lubricated?

[SimpleSexy180]

[QUOTE=ledzeppelin240]ROTORS DON'T WARP. It's THICKNESS VARIATION.

Did you force the pads in when changing then? Or did they slid in with ease? Is there a vibration, soft pedal, low pedal? Do the rotors look fine and are the sliders lubricated?[/QUOTE ]


sorry off topic: hey i totally agree with your sig

[s13irdie2]

the pads slided right in and i lubed the sliders. i can kind of feel the pedal when i step on the brakes. it gets louder when i try to turn and stop too. i just replaced the calipers with rebuilt ones. the rotors look fine but then i dont know if they are bad or not. should i just get new blanks from autozone? i bled the brakes too. thanks for your guys help.

[Stock-S13]

SHIIMSS!!!!!!!!!

Did you get new shims? They can cause squeek and grinding noise.

[skatanic28]

they also have that brake squeel stopper stuff, i would definately try that.

[s13irdie2]

no i didnt get new shims. how would the shims cause the grinding noises. do the local pepboys and autozone carry brake shims? thanks

[Stock-S13]

well the shims serve as sound retardents, the fact that you hear grinding kinda makes this odd, but i will say get shims and give it a go.

Uhh shims to best of my knowledge can be bought at a dealer, i have no clue never bought them. I run Z32 up front w/o them and get squeek and such. My z32 rear came with shims, have not put them on yet though. but still give it a go. seriously, if you resurfaced the rotro to oem spec, and changedcalipers and properly beled, them go for it.

Im buzzing of shapagne so fuck spelling, happy holidays!!!

[s13irdie2]

haha thanks for your help man. my shims are pretty dirty. imma try the dealer on sunday. any other suggestions zilvians? oh yeah, Merry Christmas everyone!!!!

[idlafie]

i just changed my pads a week ago and my brakes started grinding when coming to a stop at slowspeeds. its really loud and sometimes theres a clunking sound. it looks like its coming from the front. i searched on this and most people said to get new calipers so i got them today and put them on. after driving for 30 mins., it started grinding again. would the rotors be bad? i just resurfaced them 2 weeks ago and im pretty sure i havent warped them. what else would cause this? thanks any help is appreciated.

When you swapped out your front brakes, did you by chance check the brake pads on the back?? Rear brake pads do wear out eventually and can grind also. If the rear pads are still good, then chances are it could be the brake pads themselves. What kind of brake pads did you get?? Generic... Dealer... Performance?? Depending upon the brake pad material, some grind more than others....it all depends on the composition of the material used to make the pad and the manufacturing process.

Try swapping the pads & see what happens....

Anyhow, hope this helps...
ID

[s13irdie2]

i swapped out the rear brake pads to with hawk hp plus. the sound is only coming from the front so i only mentioned it. thanks for the help.

any others?

[thx247]

could just be unbedded pads on the rotor. XP's sound like a high speed fan spinning down when you first start using them.

[ledzeppelin240]

Most likely the pads then. The Sig is from The Doors Of Perception, read that book for a grade 12 english assignment, I got 90% on it, yeah it was awesome.

[s13irdie2]

so its the pads thats making the grinding and clunking noise when coming to a stop? it feels like my front right braking system is about to fall off. does anyone else have hawk pads? hows did yours work. thanks

[Chillaxed 240sx]

^ Maybe whoever resurfaced your rotors didn't know what the fuck they were doing ... a brand new rotor from Advance Auto Parts will run you like $20 or less ... just drop the money on brand new rotors. It's a helluva lot easier than worrying about warping or resurfacing or any of that BS ...

[s13irdie2]

i drove the car today and the noice lessesned but i can still feel and hear a little grinding. i might just get new rotors in the front and sliders. do you kno the site or store location for advance auto parts? thanks alot

[Chillaxed 240sx]

I actually dont think Advance Auto has a store on the west coast ... go to www.advanceautoparts.com to find a store near you

But AutoZone and NAPA should carry them ... any place that deals in OEM parts should carry rotors for your car or be able to get them.

[skatanic28]

i have the hawk hps and they are no louder than the stockers. most hawk pads thats ive seen have built in shims on the pads. did you use that gel that you put on the back of the pad? that stuff cured all my noise problems.

http://www.allpar.com/fix/miscpix/brakes/Brake7.JPG

[s13irdie2]

hmm thats weird my hawk pads didnt have shims on it. i had to use my old ones.

[s13irdie2]

i just got a new rotor for the front right. do i really need new shims or can i just clean them really good with brake cleaner. would it be the same?

[Dream240]

Okay, this thread is getting confusing.

First of all, are you POSITIVE that it's the front brakes? To test properly, have someone with you and go to a parking lot. Get them so they're squealing on you, and have that person stand outside along side your car. Then do the slow stops and see if they can spot exactly which wheels are grinding. Once you have that determined, then start fixing parts. It's really a waste of money to keep throwing cash at your brake system and your not solving the problem. Trust me that's what I've been doing to my rear Z32 setup and its still FUBAR'd....

And yes you should replace the shims every 60k miles or so. If you've just got the upgrade, then get new shims from Nissan. Also when you coat the parts with anti-squeal, coat BOTH sides of the shim, and the backside of the pad. It's a little messy but won't hurt anything. And let the anti-squeal dry BEFORE you start driving.

For grinding issues, check the face of the rotors for blemishes and scrapes, also look at the pad face to see if there's any evidence of damage. If there's none then the grinding is just really bad squeaking that only feels like grinding. Also, make sure your brake system is not leaking fluid anywhere. If your system is leaking fluid onto the rotors, then you'll squeal all day.

[ledzeppelin240]

To test to see wheather it is front or back just use the E-Brake to stop, if there is no sound then it is most likely front. There are way to many things to cover with brake problems and over the internet does not help at all.

Take it to a shop for diagnosis, at the dealership here it is $40 CND and they tell you what is wrong. Sounds like a waste of money but you seem to be getting nowhere...

[s13irdie2]

i put in the new rotor and the grinding seemed to stop. i still hear a little of it when stopping slowly but its only a little. i still didnt put in the shims yet. im gonna get them from nissan tom. thanks for your help guys

[aznpoopy]

meh... i don't even have shims in there anymore. i also have hawk pads. no grinding noise whatsoever. they rattled a bit when i first put them in though (i'm guessing b/c they don't sit as firmly without shims).

[Dream240]

meh... i don't even have shims in there anymore. i also have hawk pads. no grinding noise whatsoever. they rattled a bit when i first put them in though (i'm guessing b/c they don't sit as firmly without shims).

The hawk pads come with their own shims already attached. So you don't need the stock shims anymore. you probably didn't notice them attached cause they are the same color as the pads and they don't stick out or have protruding edges. Very nicely done IMO, fastened very sturdy to the pad, hell I liked them so much I took them off the hawks and used them on my new Axxis pads. Didn't seem to work the same though, damn it....

[s13irdie2]

so can the doubled layer shims be causing the grinding noise? you still need the shim on the inside brake pad with the circular thing sticking out right?

[aznpoopy]

The hawk pads come with their own shims already attached. So you don't need the stock shims anymore. you probably didn't notice them attached cause they are the same color as the pads and they don't stick out or have protruding edges. Very nicely done IMO, fastened very sturdy to the pad, hell I liked them so much I took them off the hawks and used them on my new Axxis pads. Didn't seem to work the same though, damn it....

now u got me all curious. i think i'll take the pad off next weekend to take a look.

[Dream240]

so can the doubled layer shims be causing the grinding noise? you still need the shim on the inside brake pad with the circular thing sticking out right?

Okay, first of all...you NEVER put two shims on one side of a brake pad unless that's the factory setup (like the rear Z brake pads). For the 240 setup, only one shim per pad is needed on the outside pad and the inside pad uses a two shim setup. See pic.

Oh and that little "circular thing" is the brake piston. Which sits in the brake caliper, together they make the brake caliper assembly. Just a little tip on terminology. Helps when you explain things to call them what they are. And yes you need the shims on the piston side brake pad (inside pad).

Oh yeah and unless you like making problems for yourself, don't try to remove the piston from the caliper. Or take apart anything other than the brake pads, you'll just create more problems for yourself.

[s13irdie2]

alrite thanks for the tip. im gonna take off the outside shim today and see how it goes.

[myleftlung]

It's the pads dude. I'm running HP+ too, and they grind when cold. You have to realize these are performance pads suitable for street use, and not the other way around. So stop being a woman and live w/it, or downgrade to something more suitable for daily driving conditions.

[chuy]

I agree its more of a blast too beat someone to the inside of a turn by late braking and still be able to take the line you want. If you dont like the squeeling then either change them or heat up your pads before you brake either or its your car. I already bought another set of HP+ I dont recommend the rear though. I dont think they get enough heat to them to actually work.

[s13irdie2]

It's the pads dude. I'm running HP+ too, and they grind when cold. You have to realize these are performance pads suitable for street use, and not the other way around. So stop being a woman and live w/it, or downgrade to something more suitable for daily driving conditions.

how was i being a woman when i thought something was wrong so i asked the people here? and the grinding problem i had was very loud so i fixed it by changing the calipers and rotors. so read the damn thread before calling someone a woman. :fawk:

[myleftlung]

Sorry, I didn't mean it as a personal insult but more as my way of speaking.

You cunt.

[s13irdie2]

Sorry, I didn't mean it as a personal insult but more as my way of speaking.

You cunt.

so was calling me a cunt a way of speaking too? if it is then, your a jackass.

[s14 blacktop]

are you still using your pad retainers?

[myleftlung]

so was calling me a cunt a way of speaking too? if it is then, your a jackass.

Haha, you're alright man. Anyway, I hope your brake stuff works out. I did pads/fluid/lines only to realize there isn't enough material on USDM brakes to absorb and dissipate the energy under hard driving. :( Someone on another board said "upgrade to Z brakes, you will wonder why you waited some long to do it!" It's something to think about.

[s13irdie2]

s14blacktop: do you mean pad retainers as in stock shims? if it is then yeah i havent got the chance to take them out yet but i will soon.

myleftlung: its all in fun man. no hard feelings. i was gonna do the z brakes but i didnt have enough money left over after i spent it all on spl. hahaha. everytime i go on that site, i end up buying something.