Noise/Rattle/Vibration from under truck

Its been snowing alot here lately, so I first I thought it might be ice. But 3 days later whenever I start my truck and put it in gear, I hear a horrible rattle/vibration from under my truck. It goes away when I start driving. But then anytime i'm stopped it reappears. (to me it sounds like a loose motor mount, but the truck is less than a month old) I have an appt with my dealership late today, but I'm looking for some advice so I don't get misled. Any Ideas?
2010 Tacoma TRD Off-Road Double Cab 2WD

 

At a stop try shifting into N and see if the sound goes away. If it does, I have the same problem and am curious as to what the dealer says.

 

I just got this rattle after the last of road trip.. thought is was my skids but i removed them and still have that rattle.. it sounds like its coming from front passenger side.

 

Exactly where mine sounds like its coming from. Only happens when in gear and stopped though. As soon as i switch to N it stops and as soon as I begin to drive, even just at idle driving, there is no noise.

my old post a few days ago about this:
http://www.tacomaworld.com/forum/2nd-gen-tacomas/74130-ticking-idle.html#post1414925

 

CAT shroud would do it at all times i would think.

 

Thats what I was thinking..just need to check it out when the snow stops

 

Does yours do it at all times or only when in N? If only in N then its probably the same as mine. I will check the CAT shroud out tonight.

 

Yeah when i go to N it shuts ups. its only in gear usually just sitting or just starting out

 

Exact thing i have. Ill check the CAT shroud tonight.

Bakerdan,

Dose this sound at all like what you have?

 

Maybe. I experimented with it a little last night, and it seemed like I could make it start/get worse by putting 1 tire on a small mound of ice, or by turning the wheel a little. (applying torque to the front) so I could understand it being a shroud. My appt is at 4:30 cst so I will post the dealers answer. I was more concerned it was the drive shaft support/ which would make me nervous about the tranmission seal after they quite it down. Thanks for all the post!

 

Dealer said they didnt know what the problem was, but it didn't look good. They wanted to keep the truck overnight, so I got a loaner. I'm worried it may be the trans. I made a video of the noise, so tell me what you think.
http://www.youtube.com/watch?v=txWgBcE5hlY

 

That doesn't sound good. Its quite a bit louder than the sound mine makes and it looked like yours was making that sound no matter if you were in gear or not.

 

Wow! mine is not that loud. sound a little different too

 

So what did the dealer say?

 

Dealer say anything yet?

 

My 05 Taco has developed a vibration while driving. More noticable around 60km/h. It stops and smooths off when I let off the accelerator. I'm wondering if it is a rear u-joint, a carrier bearing, a tranny mount or the tires. I have searched through other threads and found nothing. The thing that is throwing me off is that it smooths out when I let off the gas pedal. Need some help with this one friends!!!

 

Dealer said they couldn't find anything wrong, nor could they make it reproduce the sound. The only difference I could figure is that they had it in a heated shop all night and the ice had melted off everything. I'm guessing/hoping it was ice pushing on the shroud. Dealer assured me that it was documented and that if anything developed later they would fix it.

 

My Truck just started making a noise somewhat like yours, but only does it while driving, almost sounds like i am running off road are hitting yellow line in the road,but are not.it only does it for a minute or too then stops. Last week i noticed my gas pedal stuck and i was running 50 without my foot on pedal a few times. any ideas? Thanks