Knocking Noise While Braking in 2001 Jeep Grand Cherokee 

FIXED! I had the EXACT same problem with new brakes and rotors on my 2005 Jeep Liberty. Front wheel driver's side knocked just like this video. I took the breaks out, the calipers off and removed the caliper bracket and the rotor. I cleaned everything really good, and put new stainless steel, sheet metal brake shims in the caliper seats for the brake pads, and greased up the seats and the clips real good. I also removed what might have been excessive grease on the caliper pins. I cleaned the pins, and lightly greased them, and put them back in. I have not had any brake pad knock since.... This noise is BRAKE PAD MOVEMENT. It is not a suspension issue. It occurs only upon braking, and strangely enough, often after a "brake repair" . I conclude that excessive grease on the caliper pins, and / or dirt in the pad ear shim seats, and worn shims, can cause this problem. The mechanism must move freely but solidly back & forth within the caliper seats on the shims in exacting tolerances, and the caliper pins must not be excessively greasy, or excessively dry. My brakes were Autozone duralast ceramic pads.

I've been searching for a video that had the same sound my car makes whilst braking and this is it. Thank you so much !!

Exact same thing happening on my 2001 XJ Classic. Thanks for the video and comments! Much appreciated!

Thanks for your video. Because of your video, I know I have the same knocking noise like yours and give me some ideas what went wrong even my mechanic had no clue what was wrong. I just resolved this issue. After my new brake pad change, my car make knocking noise whenever I apply brake and the noise get louder with harder braking. It turns out to be wrong model of brake pad was installed. So if anyone has the same problem, they need to go back to the shop and have them checked. Sometimes the shop order the part through the phone by telling supplier the car's make year and model. They have no idea that supplier send wrong parts to them and same car manufacturer's brake pad do look similar a lot. But every specific pad has custom fit tight to your vehicle. After I get the right pad, the noise is gone.

@cxiong116 The dealer said it was a loose metal backing plate on one of the brake pads. They replaced the pad, and grinded down the rotor a little bit (not sure why, it was brand new). Problem went away for me. There's a discussion on the jeep forum site.

It was a loose metal backing plate on one of the brake pads. The delaer just replaced the brake pad and it was okay.

Thank you for the informative video. This is exactly what mine started to do. I'm going to have to check my brakes in the morning

Having the same sound on my 508 when pressing a brake in D (before complete stop) or when steering and releasing brake in R, two or three knocking sounds can be heard.

guys, i had very similar noise to above video and i changed my budget pads to Mintex brand and noise complelty gone. it worked for me and my problem, it may or may not work for you guys, but it was the cheapest option for me...hope you guys all well trying to sort this nagging problem!!

Air in the break line, loose hub nut, bad break pads, warped rotor, tie rod bushings, caliper mounting bracket, front differential/transmission. Could be alot of things. What I want to know is right before moving across the country in my truck, i replaced everything six months ago. I do all the work Myself as I always do. Pads, rotors, calipers, rebuilt the manual locking hubs flushed break fluid, new rims, new tires, repacked the bearings, had no issues at all! now all the sudden it's below freezing out side and the knocking only happens the first few times i break then goes away.... but those first few times it's violent! 3 or 4 knocks then 6 or 7 knocks then 4 to 6 knocks then nothing everything is right as rain. Until I park and go to drive again. Only on front passenger side. I drive a 1988 k5 chevy. Never had this issue before. Intermittent violent shaking and knocking for about three or four stops then proof! It's quite again. Before I get down on my knees for this girl. yet again.

I just got my rear Drum brakes replaced (Rotors and shoes), since they are installed, there is a similar knocking noise when i hit the brakes. Any idea what must be wrong? Again - the brakes are new.

I have the identical problem, and I put on some new brake pads

We have been trying to figure out this same noise on my 02 cherokee. I hope this is it. Thanks!

Duralast break pads don't fit, returned to Autozone ordered some Powerstops from Quadrarec problem solved :)

Grab the tie rods and try to move them by hand. Check the front suspension for any slop. It should be solid. Also check the dust shield behind the brakes, it's a thin metal. Could be rubbing up against the rotor when you hit a bump

Sounds like control arm bushing, broken control arm maybe, or ball joint, or even steering control arm. Notice if turning left it increases it may be the right front as more load stresses are put there.

Just had this happen to me! I had new break pads put on the front of my Nissan and within a few days the noise started. Within a few days the nocking was incredibly loud. The mechanic listened to my recording and immediately said the rotors were warped. He filed the rotors and placed new pads on for free. My guess is they were put on backwards.

from the sky d that it's making it can be one of a few things brother; It can be one or more motor mounts going out (mine makes the same noise and gets worse the faster I go and it's cause I have a few mounts out), your torque convertor bolts loose. really the best thing to do to start out with is have someone start your car while u look under the hood, then have them hold down the brake and put the gear into reverse then have them switch from reverse to drive a few times and see if ur motor moves up and down. if it don't then the joints are good. then u wanna check all the bolts that have anything bolted together and tighten any that are lose. get a good look under the car and look for and spots on parts that look scratched up real bad or bangged up like someone took a little hammer to it. if u can find that then u can narrow down ur cause. the tappin is coming from somewhere so it can't be to hard to locate. and also I doubt it's a CV boot because that noise would be constant forward and reverse and would have started out as constant clunking noise when the wheel was turned and there would be grease splashed under the car. usually found on the inside of rim behind the tire. good luck and hope this helps.

Get under the car and check each one carefully by grabbing it and shaking it to see if it has any play

I'm getting a knocking noise on my Honda jazz /fit when braking at very low speed. Brakes work fine and have just been replaced not long ago on front

i have this current sound on my 05 hyundai elantra, only from the passenger side thankfully if its teh same issue, its only the brake plate not something more severe

I have the same exact problem with my car. the sound was coming from the right side of my wheels. I thought it was a bad axle at first. I replaced it and found out that my old axle was bad anyways. then the sound just got louder. it doesnt happen in reverse, same thing. i had my car jacked up and let the wheels run, and it sounds like its coming from the center, which is the transmission. But wat in the transmission will knock other than a bad differential? And it wouldnt make sense if........

Had the same but very loud knocking noise in a '06 Town&Country while breaking reviewed by 4 different mechanics. Had the pistons replaced, rotors machined (twice), wheel hub/bearings replaced, suspension checked, and nothing. After looking to below comments the only thing pending to change were the brake pads that hadn't been replaced because they were just 3 weeks old!, so got the brake pads replaced and voila! The bad brake pads (FreeStar semi-metallic) look alike to the new ones so maybe a small defect in size was causing knocking against the calipers.

SO I HAD THE SAME ISSUE WITH MY 99 JEEP GR. CHEROKEE AND AFTER INSPECTION I HAD FOUND OUT IT WAS NOT THE SILENCER PLATE WHICH WAS RIVETED SECURELY TO THE PAD. RATHER IT WAS THE BRACKET THAT THE CALIPER MOUNTS TO (CALIPER MOUNTING BRACKET) AND I REPLACED THE SPRING AS WELL. THE SPING IS THE HARDWARE THAT LOOKS LIKE A LONG CURVEY PIECE OF COAT HANGER. THE BRACKET IS 16.99 AND THE HARDWARE IS 5.99 AT ORIELLYS AUTO. THE BRACKET HAS A CORE OF 10 BUCKS. I HOPE THIS HELPS U

youtube my car does this same noise but not as a heavy noise as this. but it does a clicking noise.. I was kinda thinking if it could be a motor mount that's failing.. cause I actually could move my car a little to listen for the noise and it sounds like its the back motor mount that sits in the very bottom.. but I was wondering do motor mounts actually make clicking noises when either braking or accelerating???

Im going with upper control arm bushings at the axle. Take a look underneath you see what im talking about

I have the same problem on the rear passenger side...I took the brakes appart n found dat where you lay the brake pads wore down it made a groove into the and from I replaced them with a RE-MANUFACTURED (they just fill it in with some kind of sotter thing and grind it down to make it look good) set it went away for like 2 3 days then it came back I replaced them again and still came back....I don't even know if the dealer makes new brake calipers but I have to look into it

2008 ford fiesta new disks and pads off eBay then this sound started, the garage changed the disks for new ones but the noise came back??? Next thing is caliper carrier bolts. See what happens.

Figure out what's wrong I have same issue ?

I changed pads and discs to Brembo on my is250 lexus and also caliper pins and rubber and noise has gone!!

Thanks for the video helped a lot know I know what to do

I literally just went through this problem with my 1998 ford escort. Took me over 2 months of solving and finally just found out it was my break pads. And my pads were only 6-8 months old. I actually ended up sanding down the pads just a little "re-surfacing" it a bit is all I did. Anyways it's gone now!!

I have a 98 Jeep Cherokee 4.0L and replaced the discs/rotors and have the exact same noise - now (thanks to the comments) I am wondering if I got the brake pads on the wrong side!? I didn't think it would matter but now I think about it then maybe so!?! Thanks for the video!

I have a brand new car that is less than a month old (Vauxhall Corsa 2016) and it's making this noise when I brake. The harder I break as I come to a stop the louder it gets. I assume this isn't normal then? That's the consensus right?

...it was the differential that knocks when pressure is applied to the brakes. if u get urs fixed plz help us. Thx

I just replaced the front pads and rotors and now i get the SAME clunking noise when i hit the brakes… Don't see how a loose backing plate on a pad can make that much noise…

i have nissan xtrail and the same sound is heard while applying brakes? just replaced new brake pads. mechanic is of the view that sound comes from axle .?. while driving and turn there is no sound except when i hut brakes.? anyone knows the fault?

Sounds like your tie rod ends mine did the same thing with my 02 Overland,replaced and problem solved, check if your steering is loose and you wonder while driving.

I have the same problem!! Please let us know what was wrong.

i have the same problem, how much did the dealership charge you? i'm just trying to get an idea. Thanks

My 2010 Wrangler is having the same issue on the front driver side...

Thanks!!

I have something similar. Car has 31k miles on it and factory brake pads (never replaced) Just started doing it out of the blue. Wondering what it is.

did u ever find out what was wrong with this? my car is doing something similar after having the brakes redone. was it a backing plate or something to do with the brakes or was it something else completely? I would love to know thanks!

yeh the dealer told me it was a rainbow with shiny candy falling from the sky. Do you still beleive him.

2019 model here. similar noise, but only one knock when braking.

I have that problem but only with One Knock not multiple like yours and it only started happening after I went over a speed bump kind of quick and also only pops I'f I go over 20mph and than hit the brakes, any ideas?

I have the same clunking noises on my Jeep liberty. coming from the back end.

My car does this as well, its bloody annoying. Only happens once car and brakes have warmed up though.

how did you find the problem?

I'm having same problem wit my 96 jeep Cherokee wat is it tat clucking noise

The question was did they just replace the bake pads, or did they also grind them down. Or did they tell you that they was planning on grinding down the rotor and just replaced the brake pad.

Had this issue & those big silver things in the wheel that look like a dinner plate had to be ground down & then the noise stopped.Sorry, I can"t think of what they are called. I am not a man.

detain all these jokers

sounds like my car too

Tie rods and sway bar. That's what the knocking noise is

I say break pads are floating

I have the exact same noise. ****. I didn't have time, so I brought my 04 jeep grand cherokee into a mechanic shop to replace the back brake pads...I've been driving around for over a year now. I moved 4000km away, so I couldn't go back to the mechanic shop. I hope this works.