Help ! Front end noise

[ExploGoldRob]

In my 00 Sport 4wd, there's a speed-related noise,sounds like it's in the front. I just got it, knowing there were FE noise issues, as it drove the noises were very loud. I replaced both CV axles & both hub/bearings. Eliminated all the noise EXCEPT: as it drives at low speed, there's a rumble that is somewhat loud, but gets lower but faster as speed increases. At highway speed, it's like a low helicopter sound. It momentarily goes away as you go up & down over a dip in the road. What else could it be ? :scratch:

 

[gavin]

front driveshaft or u-joints on the rear driveshaft
my 2 guesses

 

[ExploGoldRob]

The noise definitely is in front. It was making a racket, so I did the hubs & CV joints. Quieted all, except the remaining sound. I guess I'll check the driveshafts.

 

[gavin]

I'm going to guess the cv-joint at the t-case end of the front driveshaft.
they are notorious for making a racket before it starts making worse noises and vibrations.

 

[ExploGoldRob]

Well.......... removed the front driveshaft. No difference. So... not the hubs, not the CV axles, now not the front driveshaft. I'm at a standstill.

 

[svt4cam]

I'm fighting this same problem and correct me if I'm wrong but removing the front driveshaft won't stop the cv's and diff from spinning so you may have your answer there.

 

[gavin]

it's certainly possible it could still be the diff since it will still be rotating, just not under as much stress.

 

[jlsparky7]

http://www.youtube.com/watch?v=IvBm2kvoMQw

 

[ExploGoldRob]

http://www.youtube.com/watch?v=IvBm2kvoMQw

No, sparky, it's a speed-related noise. Somewhere between the tires & the differential. I'm almost thinking tire(s) now.

 

[ExploGoldRob]

Well... it seems that the garbage Pep-boys tires that were on this vehicle were much a part of the problem. Although I've eliminated most of the noise on this vehicle, I'm sorry I got it. This doesn't come close to the '03 I had before. It was quiet & smooth. This gen is rougher, noisier, & harsher. Even with less miles than my previous Ex, it's not a solid fell I had with my last one.

 

[ExploGoldRob]

OK... I'm at my wit's end... eliminated tires, hub/bearings, CV joint axles, & front driveshaft... I STILL have a speed-related noise, which is very prevalent at 20-30 MPH... it's coming from the front, I can sorta feel it through the floor... it's like everytime the wheel/tire rotates it drones... after 30 mph, it sorta quiets at the higher speed since it's a faster sound. Anybody have any experience with this ?

 

[geosnooker2000]

Could it be warped rotors?

 

[ExploGoldRob]

Could it be warped rotors?

No, brakes are fine & no pulsing whether the brakes are applied or not.