sounds loud at high speeds - drive train
 

Hello,

I have a 2006 Camry (manual transmission) w 165K miles.

Within the last year or so, it has gotten louder, more noticeable at higher speeds. Almost sounds like a hole in the exhaust. However, shifting into lower or higher gears doesn't change the tone of the noise. Taking it out of gear completely doesn't have an effect. However driving faster does. So I'm pretty sure it is drive train related .

Does this sound like a wheel bearing issue?

Thank you for any ideas!

Wheel bearing noise would change with MPH. Try shifting the chassis weight left and right using the steering when when driving. Determine if the noise increases or decreases.

If possible when coming to a stop, feel the area of the wheel axle for excess temp.

Make a few sharp 360 turns in both directions and listen for clicking noise.

Check brakes for something rubbing on the rotor.

Check trans fluid level.

Thank you!

The noise is DEFINITELY different from one side to the other. When the weight is on the driver's side, loud. When on the passenger side, sounds totally normal and quiet.

Put my bare foot down in that area while stopping...don't notice any usual heat.

no strange noises when I do this.

I don't know how to do this....

I checked the manual and couldn't find anything under 'transmission fluid' or 'fluids - transmission' and can't seem to locate the dipstick or reservoir for this.

One other question, any relation to the noise and braking? Does the noise get louder when braking?

If the noise changes with steering input, it may be wheel bearing on the side of the car the increased weight is on.

If you think you have located the side of the car and perhaps which end of car the noise is coming from. On level ground with emergency brake on and wheels blocked. I it is the front of the car you will need to put the trans in neutral. Rise car and rotate tire by hand.

Listen for noises such as grinding and feel for roughness or excess play. Compare left and right side tires to note if there is a difference. However,a bad bearing may not show any signs other then noise when driving. That's why you want to local the specific tire.

If the rotor is rubbing on something you should hear this when rotating the tire.

Also examine the tires, it is possible tire damage can cause noise.

If a manual trans, there is a filler port on the trans which also services as the fluid level indicator. Have you noticed any fluid leaking out of the car, is in the trans is now low on fluid?

I doubt it has anything to do with your transmission.
I agree with Joey and checking all those things over.
Also note that tire wear can cause road noise as well and can get louder as more wear is added. Do you rotate your tires? Does your car seem to bounce over big bumps? Worn struts can cause tires to wear abnormally was well.
Check tires for even wear. Shouldn't be bald on one edge and not the other, etc.