Topic: Stop children what's that sound?

[jramey]

Everybody look what's going down? Sorry had to do  it, great song

[Jeffy]

Well, it's doesn't happen at idle.  Only when moving and only when under a load of some sort.  I think it's makes more noise when I do a hard sweeping left.  My guess is that it's a hub bearing but it didn't feel like it when I was testing it.  I can hear it come and go as the suspension cycles.  I do have a bearing noise at high speeds but I think it's my front U-joint.  I should jsut disconnect the driveshaft and see if that changes anything.

[Torch_Ind]

Everybody look what's going down? Sorry had to do  it, great song

thats all I could think of to lol! 

[Jeffy]

Everybody look what's going down? Sorry had to do  it, great song

[Jeffy]

Ok, I checked the brakes and it doesn't seem to be them.  I used some left foot braking so I could keep the Jeep moving and the sound didn't change.

[Jeffy]

Well, I did some more checking and it's actually not from the front.  It's from the mid-back.  I spun the rear tire and it felt OK.  Although it is using an original XJ bearing from, I think '89.  Replaced the driver side with a Timken when I rebuilt it.  I thought it was the front probably because the front shock bushing was toast and it seemed to coincide with the weight shift.  Now that I have it fixed, it's changed when it does it a little.  I want to disconnect my front driveshaft and make sure it's not the transfer case that's making noise.  With the LSD up front, the chain is always turning.  I also thought maybe it's the exhaust.  Seems to go away when the Jeep is running smooth.  Ie, not lugging the engine.

The noise is bugging me but I think it's been there for a while now.  I've just started to pay attention to it recently

[Jeffy]

Took the rear tires off and checked the axles.  The pass. has a little more play in and out but not by much.  It's still only a few mm's.  I did notice a little seeping at the seal but it's stopped.  I didn't notice any rough spots while turning them.  Brakes look OK as well.

I've also noticed the noise only happens once the Jeeps warmed up.  I can't hear it from my side when I have the window down but I can hear it through the pass, side window up or down.

Didn't get a change to take the front DS off though.  It's gonna be raining for a while so I won't get a chance.  So far, I'm thinking it's an exhaust leak in the pipe.  (bolt-on exhaust) Or maybe the axle bearing is squeaking but not enough to be noticable bad.

[aka-justin]

In the words of Ron White... "Woo, that's an elusive little creature!"

[Jeffy]

In the words of Ron White... "Woo, that's an elusive little creature!"

Yup, it is!

[neale_rs]

Like Eugene the Jeep.

[Jeffy]

Reviving this topic since I like it as it's yet another unknown sound in my Jeep.

With the Jeep running pretty quiet, I have found another issue.  It seems the coffee can sound I hear when lifting off in 5th gear might be 5th gear.  If I'm on the power, it sounds fine.  It also sounds ok when there is backpressure on the gear but if it's coasting while slowing down I get a rattle sound.  If I apply the throttle, it goes away.  So, I'm gonna guess it might be the 5th gear rattling on it's shaft.  What say you?

Forgot to mention, it rattles when cruising at a steady speed but goes away when accelerating.  I don't think it happens when in 4th or anything lower.

[sharpxmen]

do you hear it at the transmission - i say take the rubber booths off the transmission and t-case shifters (both upper and the bolted one) and see if you can hear it better then , will be way better for pinpointing the area where it comes from.

my guess is d/s or axle related but then again just guessing based on what you describe. If it was 5th would rather do it under load and low rpm (low speed in 5th) but you never know.

EDIT: could be transfer case related also i think

[Jeffy]

do you hear it at the transmission - i say take the rubber booths off the transmission and t-case shifters (both upper and the bolted one) and see if you can hear it better then , will be way better for pinpointing the area where it comes from.

my guess is d/s or axle related but then again just guessing based on what you describe. If it was 5th would rather do it under load and low rpm (low speed in 5th) but you never know.

EDIT: could be transfer case related also i think

Hmm, but if it was the driveshaft or transfer case it should happen in all gears.  Unless it's specific to a certain speed.  I rebuilt the rear driveshaft last year so it's all new.

[sharpxmen]

Hmm, but if it was the driveshaft or transfer case it should happen in all gears.  Unless it's specific to a certain speed.  I rebuilt the rear driveshaft last year so it's all new.

i see your point, dunno then. I still think removing the rubber cover and boots will help but you're probably right that it's the transmission or the 5th more specific.

[neale_rs]

Does it matter if you have the clutch in or out?