I actually have a tj ?
 

I have a 98 Tj and it only has 98k miles. Since I bought it I've dumped a lot of time and money giving it tlc. It's got all new suspension parts and I've put a new drivers side front axle and axle joints both sides and hub assemblies both sides and new calipers and pads and shoes and hardware and a tune up and radiator and water pump and header and tps and crank sensor and complete fluid flush and change throughout the whole jeep etc and now I have this awful whining screeching grind sound coming from somewhere upfront. It only starts once you take off it doesn't start when the jeep is sitting and idling. But when you come to a complete stop with the clutch in it goes away. Also it goes away after it warms up after about 3-4 miles down the road. But when you are slowing down or speeding up the sound doesn't slow down or speed up it stays constant. We have already ruled out the throw out bearing..... Help me figure it out I'm running out of idea and pieces to replace :(

have you check your drive shaft for play in the u -joints? sound can sound like it is coming from one place then be in another.... the other thing is... maybe draggin caliper?

Im sure you've checked but maybe the belt? That's all I can come up with

Brand new calipers ( started before I did the brake overhaul) and drive shaft has no play and the belt is new too. :(

hm... the other thing that comes to mind is the alternator...

What makes it worse is I only bought this jeep in July and it's irritating that i have had to replace and fix all these things in 5 months. It's very detering :(

Idk maybe, when the hood is up it sounds like its coming from the bottom or the back of the motor. We've even jacked The rear end up and ran it through the gears to make sure it's not in the transfer/ trans/ or diff but it could be that it's not making a noise because its not under a load???

Did you replace or turn the brake rotors?
IF its that bad, You might be able to jack it up and rotate the wheels and see
if you hear/feel it.

I know its aggrivating replacing all that stuff, but look at this, once you get this lined out
you should be good for a LOT of trouble free miles.

I've parked that jeep it's my daily driver normally and I'm leary that the noise is serious so I've been hesitant to drive it. I've replaced all the brake components at the wheels and checked the hubs and axle joints an all u joints to make sure they haven't gone bad again and they are all checking out to be ok. That's why I've come to a stand still.
And having to drive my xj which is killing me in mpg and $$ :( they are both lifted but the xj drinks gas like no tomorrow lol

did you check your alternator?

Idler pulley bearing? Squirt a little oil on the bearing then see if the sound changes.

If it were the idler pulley or alternator it would be making the noise when you start the jeep and let it warm up and idle right? Because they would be moving with the belt when the motor starts. but it only starts when you start moving/rolling.

I can let it sit in the yard for 20 minutes running and warming up and as soon as I start moving that god awful sound starts and stays loud and a constant speed for 3-4 miles but if I come to a stop during that 3-4 period and hold in the clutch it goes away but as soon as I start again it starts again even at a slow roll it's loud and at a constant speed it doesn't differ in speed if u are going fast or slow

What about your throw out bearing in the tranny? If its going bad you would here it make an awful noise when you let the clutch out. Press it back in and it goes away. Maybe when its warmed up its fine. Just a thought. I know this has happened to me. When it first starts to go bad its hard to pick it out as the culprit. Mine wasn't consistent at all. And like yours once it warmed up it went away. But this wasn't in a jeep. Good luck.

They've said that because it stays constant and if the clutch is in while just drifting like going down a hill or something that the throw out bearing isn't the Culprit because the noise doesn't change speeds and we jacked it up in rear and ran through the gears and no noise either from rear diff or transfer or tranny. But it could have been silent because it wasn't under a load!?!? Even thought maybe it's the dust shield rubbing back of rotor but the speed of noise would have changed, I bent that back out of the way and that's not it either. It's like a belt whine with a metallic sound to it. And only while the jeep is in motion.

And while the clutch is in going down the driveway the noise stays loud and consistant until I stop and then it's gone. I've tried a million theories and test replaced everything I know to replace and still have this noise

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AC clutch bearing, water pump bearing???? How is your belt riding on the pullys?
worst could be comming from the tranny, a bent shaft loose bearing loose syncro. at Idle and in neutral everything spins when you press in the clutch from that point back all spinning stops, and no more noise. sound s like a tranny or transfer case issue. there are parts that turn in there even when not in use. try running it through all the gears you've got, one of them may make the noise go away or get worse, and wala problem found.

OEM Tech is for XJs.

TJs fall into the "other vehicle" category.

Moved.

I tried that while having the rear jacked up and no noise at all, but maybe that was because it wasn't under a load?!? That's my fear that it's in the transmission because that means I'll have to cave and take it to a garage :(

the alternator will not make noise at idle unless it is really bad... it might only be making noise under load....

if the noise was coming from up front it would be constant, if it was an alt. the noise would increase as you turned stuff (lights radio blower) on. sounds like a tranny or t case.

i'm gonna say it inside the trans!!!! can bet 20 on that!

I would check all of your pulleys and the associated units with them. I knownyou would think it would change with speed but it may not.

If I turn things on and off the sound doesn't change at all and all the pulleys seem to be checking out.

Do you have a lift on it, if so, do you have a transfer case drop?

My 03 TJ made a hell of a lot of noise from the flywheel/throw out bearing area when I lifted it and put the TC drop on. By dropping the back of the motor down to accommodate better driveshaft angles, you put the flywheel/throw out bearing at an offset angle, and it makes noise.

As soon as I installed my SYE and took the TC drop out the noise all went away.

Yes I have a 4" lift and a tc drop but I do not have an sye. If its tranny, what part of tranny do you think???

Yes I have a 4" lift and a tc drop but I do not have an sye. If its tranny, what part of tranny do you think???

I do not have ac so it can't be ac clutch

Throw out bearing....

Throw out bearing is fine it's been already checked

sounds like a tranny prob. But if you dont find it, it will find you on the side of the road I hate to say

My TJ had all sorts of issues when I had the TC drop on it, as soon as I put the SYE on and leveled out the tranny/engine back to level, the noises went away.

Have you checked fluid levels for the TC and/or tranny yet?

The levels in both are fine we just changed them. We did transmission, transfer, cooling system, oil change, and diff drain and fill. But noise was before we did all of that. We figured while replacing all the other stuff a full fluid flush and change would be a good idea.

Along with brakes when we replaced all the components we drained refilled and bled the system

Yes that's my fear that's why I've parked it. I'm thinking I'm going to have to cave and take it to aamco or the dealership, my fear is that because I'm a female they will try to screw me over. My husband does most my maintenance (used to be a Toyota mechanic) but he doesn't want to mess with tranny or transfer since we don't have a garage to work out of anymore.

the dealer won't jack you around they have had to clean up their act, by the book is the way it has to be done. aamco well it depends on where you live. DO NOT sign anything that gives them free reign over the repair, make sure they notify you of all things they see before any work is done. If you say no and they do it anyway it is free. Any problems you have with mechanics or auto shops call the local B.A.R (bureau of auto repair) they can be your best friend and a mechanics worst nitemare.

You guys are funny.
Tranny input shaft bearing.
Common on all tjs.
$500-$1000 to fix.
Don't be afraid to drive it unless it starts to sound like forks in the garbage disposal.
That's when it's real bad lol

Forks in the disposal. That's funny. I know that sound by heart!