Who replaced your hub and axel, you or a shop? And why was it replaced?
If a shop replaced it, then they should've inspected all four of your hubs and test drove your vehicle. If they gave you your car back with a roaring noise without finding out what it was, then they are incompetent and you shouldn't do business with them again. If you paid them to diagnose this sound and fix it, and they replaced your parts but didn't fix the problem, then they are liable and you should take the car back and demand they do so immediately.
If you replaced these parts your self, then was it because those specific parts were bad? You should never remove/replace parts and hope to hit the jack pot. This never works and only cost you money that could've been spent at a shop.
Now, the roaring noise doesn't necessarily have to be a wheel/hub. It can also be your transmission.
While driving, does the noise get louder with speed? Can you determine if the noise is coming from a certain corner of the car?
While driving, have someone sit in the back and place their ear next to each rear wheel. If it's one of those wheels, then it should be relatively easy to determine which one. If it's not coming from the back, then check the front.
You can jack up the car and place one hand at the top of the wheel and one at the bottom. Try wiggling the wheel side to side and up and down. If there's any play in that wheel, then that's a bad hub. If you don't find any play, the hub could still be bad, but you'll have to take it to a shop for further diagnosis. And as for the transmission, if that is bad but you aren't a mechanic, then there's not much you can do about that yourself.
I've been a mechanic for 15-years, but I still won't open up and rebuild a tranny. (Waaayy too many parts!)
Monday, January 18th, 2010 AT 7:51 PM