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So I have been noticing a pretty loud squeaking/chirping/whatever you want to call it coming from the front driver's side wheel. It makes the sound whenever I drive in a straight line, but stops when I brake and/or turn. It may be relevant to say that I have recently installed wheel spacers. The sound was there before, but it seems more pronounced now.
 

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Mine started doing the same thing. I have no wheel spacers. Stock rims. Thought it might be the wear sensors on brake pads so pulled the wheel and plenty of pad. No idea.....but its definately annoying. Squeal follows up and down as you speed up or slow down.
 

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weird thing is though that it stops when you hit the brakes. I'm going to guess that the shield is rubbing the rotor and when you push the brakes, the caliper pushes the pad into the rotor and as well moves the shield back out of the way. Pull the tire off and look around that debris shield for anywhere at all that it could rub the rotor.

Those debris shields are about useless... everytime I've gone through mud I get rocks trapped between the shield and the rotor. I had enough of it and removed them a couple months back. Yes, Im more at risk for a rock or something to hit my rotors but hell, they are so much easier to clean this way and I no longer get stupid squeeks all the time in the front brakes.
 

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Is it squealing or chirping and increases with speed? Chirping would most likely be a u-joint. Squealing may be brakes or bearings. Bearing would most likely sound like grinding. Jack it up and check the wheel for play. Should be none. Check brakes for wear. For the u joint that is tough if there is no slop in that. The chirping would mean it is starting to dry out and set up..
 

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x2 on wheel bearing.

If it happens when you go in a straight line it indicates wheel bearing as your u joint caps aren't moving in a straight line. I had a similar noise, went away when I touched the brakes, and replaced everything but the wheel bearings. Since the axle swap though the noise seems to have gone away, maybe swapping them over and installing new shafts and re torquing everything down made the noise go away.
 

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Mine was making those same noises today from the rear. Rear wheels were not properly torqued / tightened! Just bought new wheels a few days ago.
 

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Ujoints, wheel bearings, and shocks can make a similar sound when they begin to fail.

It wouldn't be your actual axle ujoints because they don't really move when you are going in a straight line, but driveshaft ujoints would be moving. Do they have any side to side or up and down play in them?

Wheel bearings can make that noise as well. How is your diff fluid level? If it's very low, refilling it probably wont fix the sound but would tell you why the bearing failed. It could simply be miles or a dried/cracked outer axle seal allowing dirt to harm the bearing. Any leaking from the front axle? A wheel bearing would make sense because it was quieter before spacers (less stress on bearings) and louder after you put them on (more stress).

Shocks can also make a similar noise if internal parts or seals break, allowing the shaft inside the shock to make contact with the outer tube. Does the sound happen when you shake the jeep from side to side? If not, its probably not the shock.
 

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!!!!!!!!Check out your break pads !!!!!!!!!
jjust went through this myself, there is a metal tab on the pad that hit the rotor. It's called a SQUEALER.


Sensitive content, not recommended for those under 18 Show Content
image-440184013.jpg

To let you know your pads are almost gone. I thought it was my bearings but i lifted my front end and I didn't have any movement in my tire.
If its consistent while driving and stops when you break its probably this
 

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weird thing is though that it stops when you hit the brakes. I'm going to guess that the shield is rubbing the rotor and when you push the brakes, the caliper pushes the pad into the rotor and as well moves the shield back out of the way. Pull the tire off and look around that debris shield for anywhere at all that it could rub the rotor.

Those debris shields are about useless... everytime I've gone through mud I get rocks trapped between the shield and the rotor. I had enough of it and removed them a couple months back. Yes, Im more at risk for a rock or something to hit my rotors but hell, they are so much easier to clean this way and I no longer get stupid squeeks all the time in the front brakes.
On 2000+ those dust covers are also spindle spacers.
 

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for me I had bad wheel bearings and bad ball joints. (that would be my next check for your squealing issues) Also my U-joints were chirping (literally sounds like angry sparrows lol). It was a noisy beast for a while lol
 

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Chirping/Squeaking in my wheel well

I own a 2012 Jeep Wrangler. Following a recent tire rotation, I began noticing a chirping or squeaking coming from what sounds like my front wheel well. I have noticed that it seems to cause my Jeep to hesitate just slightly when as it chirps. I took it out on a quiet country road, no potholes or bumps in the road and drove it. It seems to do this when I hit between 35 and 55 miles per hour and when I increase or decrease by 5 miles per hour. So at 35, 40, 45, 50 etc. I had it in a shop and they didn't hear it so they didn't do anything. It is driving me crazy because I take care of my vehicles and I can hear it. I don't want to ruin my Jeep but I have no idea what is causing this. Any ideas? Thanks!
 

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I own a 2012 Jeep Wrangler. Following a recent tire rotation, I began noticing a chirping or squeaking coming from what sounds like my front wheel well. I have noticed that it seems to cause my Jeep to hesitate just slightly when as it chirps. I took it out on a quiet country road, no potholes or bumps in the road and drove it. It seems to do this when I hit between 35 and 55 miles per hour and when I increase or decrease by 5 miles per hour. So at 35, 40, 45, 50 etc. I had it in a shop and they didn't hear it so they didn't do anything. It is driving me crazy because I take care of my vehicles and I can hear it. I don't want to ruin my Jeep but I have no idea what is causing this. Any ideas? Thanks!
Could be a few things..brake dragging, axle u-joint, unit bearing. First thing i would check, is to see if there's any play in the axle u-joint. Get the front end off the ground and spin the tire by hand while someone turns the steering wheel from lock to lock.
 

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My 2012 is doing the same thing. I had it in the shop yesterday and they couldn't find anything. It didn't seem to do it though until I had all four tires rotated this past time.
 
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