silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 11, 2009 16:10:22 GMT -5
Well, I was farting around today trying to figure out a noise. When I'm driving, I hear an occasional noise like a worn brake pad dragging. Kinda metal to metal. When I'm driving in the parking lot at home and hit the brakes, the noise is just like brake grind. While at 30mph and up, I get a swish,swish,swish noise when I let off the accellerator. It's not the brakes....I haven't a clue. Then there's number two.....Loud clicking when I put in in either 4 hi or 4 lo, it sounds like either a really bad u-joint, a trashed CV (it doesn't make clicking in 2 wheel) Or the chain in the TC is fuggered. I think it has a chain in the TC...(NP8 pushbutton auto TC) I can also hear the oil in the TC slosh when I spin the DS by hand. Everything feels smooth. I ruled out the CV's because it would be a constant noise since they turn all the time. I replaced the u-joints front and rear and still have the noise. I am up in arms at the whole issue. Number 3..... there is a slight vibration when on the hwy doing 55+. it gets worse at 70. It has fairly new tires, and the wheel bearings are in good shape. I'm ready to burn it!!! If anyone has an idea, please let me know. If anyone lives near Hillsburrito and would like to ride along to listen to it, PM me and I will give you my cell# and pick up some beer. ... damnit...sonofa motherf...shi....piss....Damn I'm frustrated. Thanks.
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Post by poorboy1 on Apr 11, 2009 17:10:29 GMT -5
sounds like a warped rotor.
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silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 11, 2009 18:52:46 GMT -5
The rotors do take on a little herky jerky, but it does it cold, hot, doesn't matter. The noise is a bit severe for a rotor. I keep thinking transfer case. That bullshit cast aluminum don't hold up to a wet fart. It "feels" like a lot of slop where the output to the rear DS indicates a fuggered bearing or something. Then the 4X4 thing popping points to the TC as well. The more I think about what could fail, the more I think it's the TC. I wish I could find some info on retrofitting a manual TC without changing yokes or driveshafts. Just a simple swap. It has the 4L60E tranny. Any suggestions? I'll trade out labor for help with a fix. I know how to work my ass off.
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Post by The Black Jeep on Apr 11, 2009 19:47:03 GMT -5
The 55mph thingy is most likely a wheel out of balance. Probably have a wheel weight fell off. Get the balance rechecked.
Could have a rock or something stuck in the caliper or brake pads. Pull the calipers off and inspect the pads, look at the rotors to see if it looks like anything has been scraping.
Might also be a dry seal on the back of the rotor by the CV axle. Might try squirting oil or WD-40 on it.
CV axle noise...does it make the clicking noise when driving straight and/or when turning?
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silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 12, 2009 11:06:58 GMT -5
in 2WD, it makes no popping, in 4Hi/Low, it pings either straight or turning. Worse when you accelerate as opposed to just letting it idle along. I looked over the rotors and pads and they are as smooth as a baby's @#%. I know when they heat up they pulse a bit. The vibration/resonance issue happens at almost every speed now, but only when you let off the accelerator. The grinding noise is worse as well when you hit the brakes. I just don't get it... I'm gonna stick with the older trucks from here on out. They are built better and are simple. That's why everyone is going with foreign cars these days. They build them to last, not skimp on quality for profit.
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Post by The Black Jeep on Apr 12, 2009 12:02:14 GMT -5
Wondering if you have a bearing going bad? If you spin the tire when it is jacked up and put one hand on the knuckle and feel for a vibration, that will be a bearing going bad. Tire should spin freely, not ruff. Shouldn't be any movement in the bearing. The grinding could be a backing plate touching the rotor or one of the metal tabs that hold the brake pads in rubbing on the rotor?
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silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 12, 2009 13:15:49 GMT -5
I checked the backing plates, pulled the calipers and pads, etc. I cannot find any evidence of rubbing. It's not a noise like a light rub. It's more like an aggressive brake grind. What about that chain in the TC? Do they stretch and bind up or do they just break? I expect if it is the TC and I drive it, it will prolly fly all to pisses on the hwy when it goes....am I right in that train of thought.
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Post by poorboy1 on Apr 12, 2009 14:23:56 GMT -5
the chains can stretch, usually if they break while on the road they either drop to the bottom of the case and thats it or they wad up and grenade. this rig doesnt have a gov loc type diff does it?
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silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 12, 2009 15:43:46 GMT -5
I'm not sure what that is. I know is has a locking rear diff. I'm not sure about the front. I know if you put in 4wd, you can jack up one tire and it will not spin. Front or rear. How do I find out if it is the diff that you speak of?
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Post by poorboy1 on Apr 12, 2009 17:09:12 GMT -5
if its a stock rear limited slip then its what i was refering to. they sre the weak link of the rear diff.
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silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 12, 2009 19:11:55 GMT -5
it is the stock rear diff. Where can I find the data to tell me what it is. I couldn't find ant tags on the diff.
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Post by F250Diesel4x4 on Apr 12, 2009 20:10:07 GMT -5
I know you can get some axle info from the VIN#, although it might just be the ratio. Not sure if it holds true for a 99, but it used to be you could look at the 7th digit (or something like that) and reference it to a chart for axle info. I know I've seen the charts online, might help you out. Or take the VIN to a dealership and see what they can tell you.
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silverlion
lil wheeler
got a Jeep, got a Jeep, la, la, la, luh, la.
Posts: 34
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Post by silverlion on Apr 12, 2009 22:11:58 GMT -5
You know, it's really wierd. When you go over a dip in the road, it mahes the noise. I got to thinking. There is an arrow on the rear driveshaft. An orange arrow on a sticker. I bring this up because when I changed the u-joints, they were not OEM.(didn't have to burn out the factory plastic) Someone has changed them before. Possibly put in backwards? Which way should the arrow point? You would think a balanced DS is a balanced DS. Who knows? I'm afraid to drive it to work(30 miles each way). Good thing is, if it craters, I will know what the noise was. I am so up in arms about the whole thing. I don't have the cash to pay a shop to search for hours and hours to tell me what it is. I'd rather replace a broken part. Then there's the towing fee I cannot afford....
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Post by The Black Jeep on Apr 13, 2009 1:35:18 GMT -5
Les Schwab doesn't charge anything to check the suspension or brakes. Take it in and ask for a quote only. This will help eleminate some possible ideals.
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Post by poorboy1 on Apr 13, 2009 7:20:53 GMT -5
You sure the shaft doesn't have 2 arrows showing which way the slip goes back together. Is your driveline in phase
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