Strange sounds - need help.

Hi guys

I just bought my 2009 Tacoma TRD double cab last week. I just noticed a strange sound whenever i hit between 50km\h (30mph) and 30km\h (19mph) it seems to be its loudest at 40km\h (25mph). It is kind of hard to explain the sound... it almost sounds like a humming sound.
I am trying to do some research on the bearings... do they tend to have bearing issues?
Any ideas you guys may have will help[.

Thanks again.

PS: I love the truck... I waited a while to buy it. Totally worth the wait.

 

put it in 4 wheel drive and see if the noise goes away

 

Is the truck lifted?

 

Do you get a vibration at the same time ?

 

Thanks for the quick reply...

Nope the truck is not lifted... There really isn't a vibration... I tried in 4WD... same noise... just not as loud.
It almost sounds like the tranny is winding down... not sure. T

The other thing is when I am pressing the gas the sound seems to go away... but when I take my fot off the gas, and coasting... is when is starts. Weird!

 

Well I dropped off the truck at the local stealership... they have ordered a new rear diff carrier assy.
I have to admit... I am a little worried that my truck with only 25,000Km has already gone thru one rear diff.

Does anyone know if this is has been an issue with these trucks?

Thanks again for your help.

 

Odd , keep us updated .

 

I know reg cabs get a noise from their rear driveline even on some stock vehicles. The noise goes away once you step on the gas, but returns while coasting. However, in reg cabs, this noise becomes worst at higher speeds

 

I'll keep everyone posted on what happens. Its all covered under warranty, but still kind of freaks me out.
After doing some serious reading last night on here... they are also changing out the fan blower motor, and Resistor.

I am totally hooked on this site. I have never joined a forum... lovin it.

 

having noise issues my self after I lifted my truck though

 

Just got back from the dealership... They did in deed change out the rear carrier assy... and the noise is gone.
when I asked them about the issue... they just said, we have had to change out a few of them. Apparently bad parts.
That's all i could dig up on them.
Thanks again for everyone's help.

 

Glad you found a fix. Thanks for keeping people posted.