Trasmission Transmission makes a roaring noise, that gets louder as the speed increases.

I really need the year but here is what might be the cause, the engine cooling fan clutch may be defective, if it locks up you will hear a roaring noise that gets louder as the engine speed increases. Open The hood and rev up the engine does the fan make allot of noise, like an airplane propeller?

That's probably a bad fan motor or something caught in the impeller.

the wheel bearing is OUT

Have the rear wheel bearing checked for excessive wear.

check wheel bearing...transmission output shaft bearing. noise is louder because when bearing slow down, they get louder from worn down ball bearing inside the cage, space is developing between the ball bearing..caused by lack of lubricate, or just worn out bearings

If your noise is a low pitch rumble that gets louder the faster you go, it likely is a wheel bearing that is the cause. Another sign that the noise is from a wheel bearing is if the noise tends to get louder when steering one direction at a steady speed, and quieter when steering the other direction. A transmission noise does not change with the steering.

if the front brake pads,rotor and more importantly the caliper were all installed correctly, this noise is probably a front hub bearing that is failing. they will start a humming noise and then a roaring/growling noise the worse they get. is the noise rotational? by that it will get louder and higher in pitch as you increase the vehicle speed. get it checked out right away to avoid possible further damage.

That's a hub bearing. Replace the one that's doing it. I'm assuming this 'roar' is coming from the front, NOT the rear.

jack up front of car get hold of tyre an see if u get any play if u do u may get away with nipping them up a bit

Try replacing the front end wheel baring(s) If it is a roar that you can hear resonating from the windows, this is most likely it.