Creaking noise when in 4WD after lift - Page 2

Creaking noise when in 4WD after lift

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  1. #11
    JK Junkie Rednroll's Avatar
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    The noise is coming from the front. General proximity would be anywhere along the front axle area.

    How can I tell if the front U-joints are going bad?
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  2. #12
    JK Enthusiast casamtb's Avatar
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    I'd try to replicate the conditions and have someone drive it while you walk next to it and identify the source. All i can share is my experience, and when my axle u joint went, I could feel the binding in the wheel a week before it made any noise. I thought it might be tire cupping and i needed to rotate the tires, then it started squeaking. Same as you described, like a shitty door hinge. I knew what it was right away. I know that the u joints click when they completely fail, i've heard them. But i have also felt them bind and and squeak when the cap seals start to go and you get that squeak under load.

    I don't remember if you said the squeaking was rotational, like squeaking related to tire rotation or if it was completely random and related to suspension articulation.

    Like others have said, CV joints are going to grind or click when they fail not bind. With the binding and squeaking you describe, my money is on the front DS u joint. Since u joint aren't CV, there is addition cyclical force placed on the caps under angle and load. If it is that, you have a long time until it fails completely and its a $70 fix ($30 for the new joint and $40 to have a local shop press it in)... again assuming that is what it is.
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  3. #13
    JK Super Freak resharp001's Avatar
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    Thing that really sux is that a lot of this is just trial and error. Got a buddy with a factory shaft? The easiest thing would be swap shafts real quick and see if problem persists. At least it would narrow down or eliminate the front DS quickly.

  4. #14
    JK Junkie Rednroll's Avatar
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    Quote Originally Posted by resharp001 View Post
    Thing that really sux is that a lot of this is just trial and error. Got a buddy with a factory shaft? The easiest thing would be swap shafts real quick and see if problem persists. At least it would narrow down or eliminate the front DS quickly.
    Nope, I was actually thinking of picking up a factory DS off of Craigslist to try that out, then I kind of started thinking about not wasting my time and money and spend some more on an Adams DS but I hate the thought of just throwing parts at a problem. I have a trip coming up to Silver Lake sand dunes, and wanted to fix this problem before then. Wanted to try to avoid a situation of something breaking while offroading on the trip, although the benefit would be of me knowing exactly what's creaking and needs to be fixed.
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  5. #15
    JK Junkie Rednroll's Avatar
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    Quote Originally Posted by casamtb View Post
    I'd try to replicate the conditions and have someone drive it while you walk next to it and identify the source. All i can share is my experience, and when my axle u joint went, I could feel the binding in the wheel a week before it made any noise. I thought it might be tire cupping and i needed to rotate the tires, then it started squeaking. Same as you described, like a shitty door hinge. I knew what it was right away. I know that the u joints click when they completely fail, i've heard them. But i have also felt them bind and and squeak when the cap seals start to go and you get that squeak under load.

    I don't remember if you said the squeaking was rotational, like squeaking related to tire rotation or if it was completely random and related to suspension articulation.

    Like others have said, CV joints are going to grind or click when they fail not bind. With the binding and squeaking you describe, my money is on the front DS u joint. Since u joint aren't CV, there is addition cyclical force placed on the caps under angle and load. If it is that, you have a long time until it fails completely and its a $70 fix ($30 for the new joint and $40 to have a local shop press it in)... again assuming that is what it is.
    That sounds like a very likely diagnosis. I would say it is somewhat rotational. I turn the steering wheel, move forward to approach a climb up a small hill and right when the tires first start going up the incline of the hill is when I hear the creak sound, then it stops as I'm climbing up the incline, and then creaks again, as I go over the crest of the hill and when I 1st begin to climb back down, it will creak. Definitely a wooden door creak type of sound.

    I'll see if I can find a way to mount a camera underneath and take some video and aim the camera towards the U-joints.
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  6. #16
    JK Enthusiast crzyamerican's Avatar
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    Sounds more like a bushing that's creaking to me. Maybe a control arm binding a little. It wont necessarily make the same noise by just jumping on the bumper.
    Maybe even the sway bar mounts

    Just a thought
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  7. #17
    JK Junkie Rednroll's Avatar
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    Quote Originally Posted by crzyamerican View Post
    Sounds more like a bushing that's creaking to me. Maybe a control arm binding a little. It wont necessarily make the same noise by just jumping on the bumper.
    Maybe even the sway bar mounts

    Just a thought
    Thanks for the suggestions. I still need to put a camera underneath it and take some video. However, if it was a bushing or control arm, then why would the sound go away when in 2WD?
    '09 Sahara JKU
    Mods:
    - Mopar BBK, Mopar 2in lift, AEV Front tubeless bumper, skid plate, 12K winch.
    - 315/70/R17 BFG KO2's mounted on DC Gunmetal 7's, TF HD Carrier
    - Ruffstuff HD Tie rod,Synergy HD Draglink,TF Front HD TB,RC X-flex adj front LCA's
    - Katzkin Leather, 7.2 Surround 2800W Infinity Audio System
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  8. #18
    JK Enthusiast crzyamerican's Avatar
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    Quote Originally Posted by Rednroll View Post
    Thanks for the suggestions. I still need to put a camera underneath it and take some video. However, if it was a bushing or control arm, then why would the sound go away when in 2WD?
    My bad. I was focused on the "flexing" part and missed where you took it out of 4WD. I haven't heard a driveshaft creak. All the JK driveshafts I have heard start clicking when they start to go.
    Just going over things in my head.

    The only other thing I could think to throw into the factor is the added torque to the front drive line while in 4WD. I'm kinda stumped on this one. I just cant think of anything else that would make a creaking noise. But then again, what I imagine as a creaking noise could be completely different then the creaking sound you actually have. LOL

    Hope you figure it out. I'm curious now.

    I would eliminate anything you think is obvious, then start thinking "outside the box" on possible causes. Sometimes its the things you would least expect. Good luck!
    Last edited by crzyamerican; 08-25-2017 at 07:12 AM.
    2013 Sport 2dr (HIS)
    Rusty's 3.25 Basic Lift (got 4 inches)
    AEV Geometry Brackets
    Rough Country Quick Disconnects
    Rusty's Rear sway bar links
    20" Moto Metal w/Nitto Terra Grapplers
    Paramount Modular Front Bumper
    Barricade rear bumper w/Tire carrier
    LOD Rock Sliders
    Engo 10,000lb winch w/synthetic line & larger Hook
    Tatton's heavy duty 1310 Front Drive Shaft
    4.88 gears with front Eaton E locker
    Oliver's Rear drive shaft
    Rocl Krawler Rear Upper Control arms
    2013 JKU Sport (Hers)

  9. #19
    JK Enthusiast crzyamerican's Avatar
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    Is your front axle the standard D30 with BLD? Or do you have the limited slip?

    I was just thinking if its the BLD, maybe the brake is being applied (correctly or incorrectly)to one side do to the BLD system?

    Now I'm just throwing things out there But that was another thing that could "creak" so I had to...
    2013 Sport 2dr (HIS)
    Rusty's 3.25 Basic Lift (got 4 inches)
    AEV Geometry Brackets
    Rough Country Quick Disconnects
    Rusty's Rear sway bar links
    20" Moto Metal w/Nitto Terra Grapplers
    Paramount Modular Front Bumper
    Barricade rear bumper w/Tire carrier
    LOD Rock Sliders
    Engo 10,000lb winch w/synthetic line & larger Hook
    Tatton's heavy duty 1310 Front Drive Shaft
    4.88 gears with front Eaton E locker
    Oliver's Rear drive shaft
    Rocl Krawler Rear Upper Control arms
    2013 JKU Sport (Hers)

  10. #20
    JK Junkie Rednroll's Avatar
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    It is the open Dana 30. So I can't elliminate that possibility. I'm going to the sand dunes next weekend. I was hoping to get this figured out before then, but I've been working on so many other things, I haven't had a chance to dig into this enough. Changing trans fluid this weekend.

    Just hoping something doesn't break on the dunes. I'll have tools so pulling a front DS shouldn't be too difficult if it's the U joints.n
    Last edited by Rednroll; 08-25-2017 at 09:21 AM.
    '09 Sahara JKU
    Mods:
    - Mopar BBK, Mopar 2in lift, AEV Front tubeless bumper, skid plate, 12K winch.
    - 315/70/R17 BFG KO2's mounted on DC Gunmetal 7's, TF HD Carrier
    - Ruffstuff HD Tie rod,Synergy HD Draglink,TF Front HD TB,RC X-flex adj front LCA's
    - Katzkin Leather, 7.2 Surround 2800W Infinity Audio System
    My Write-Ups:
    Folding Hitch Cargo Basket with Rear Lighting
    MyGIG RHR (730N) Install
    Android OBD2 Wifi Adapter Setup Guide (No Root)

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