Can't find this rattling

My 05 4x4 4 cyl manual makes a rattling sound for a second or two when under load at low RPMs. I.E. pulling second gear on rolling stop sign, hard acceleration after shifting, high idle after cold starting. It sounds like a heat shield/skid plate to me but I've spent a lot of time removing, tightening, and adjusting various things and I cant get it to go away. I've checked everything that could possibly move and now it getting frustrating. Anything you think I might be overlooking?

 

Holy thread revival batman!

 

True on searching!

I don't have that rattle back there. I did notice a rattle once and it was from the little cubby hole door back there. I had bent the tab that holds it in place so it rattled a bit. Fixed that, problem solved.

I'd suggest you get someone to drive it for you while you ride in the bed and start poking around.

 

I have a similar rattling on my '12 TRD 4x4 Automatic transmission. It's at lower gears, down shifting going up a steep hill, etc.

I brought it to the dealership, and they first told me it was rocks in the skid plate.. aaah ya, no. Then they took it back in and came back out to say they can't hear it. So, I took it out for a ride with them. Then he says.. ooooh you need new spark plugs. I didn't really think it was that... but let them replace them on my next service, as they were included in the 60k mile service. I still have the rattling.

I Had a similar noise in my '05 4runner and it turned out to be the catalytic converter in that vehicle.. but i've yet to get my dealership to agree with me and check it.

They've tightened all heat shields and the skid plate.. also removed those rocks from the skid plate.

I'm still trying to get them to check out the cc on mine.. but maybe something you can see on your end.

Post back if you find the issue cc or something else.. I'd definately like to hear what the resolution was if you find it.

 

Since this thread has been revived, can anyone help me narrow down this noise? I took it to two muffler shops around town and they told me I needed a new muffler. I bought a Gibson Cat Back exhaust and yep, you guessed it, the noise is still there. I've checked every bolt I can get my grubby paws on, replaced some washers on the heat shields and nothing helps. It's only when the truck is cold, or it's cold outside. When the truck/weather warms up, the noise mostly disappears. I don't want Toyota to look at it because they charge $90/hr. I can just see that being a 6 hour project to "find" it. Any help is greatly appreciated! Also, I know trucks make noises, but holy damn does this one annoy the shit out of me.

Video: Sorry, I get an error every time I upload it.

https://www.dropbox.com/s/dvdglmlrtpwd0i5/2014-08-21%2007.22.23.mov

 

I have the same thing and nothing more to contribute, just hope someone posts an answer. I thought my skid plate was rattling bu it can't gt any tighter right now. Usually happens whn I do a rolling start in 2nd gear. Like a mashy metal vibration sound. Definitely frustrating...
My truck is going in next Friday and I asked my mechanic to drive/listen again and try to determine what it is. I will kep you posted...

 

Well done, sir.

 

I had a similar rattle.... eventually found it to be where the engine intake air box connects to the inner fender. There was at one time a foam gasket there. It had deteriorated and allowed the plastic to rattle against the metal fender only when engine was cold. replaced the foam with a strip of fuzzy side Velcro tape. Problem solved!

 

Also Check the gas tank heat shield near the drive shaft. I hit a puddle once and it bent the shield so it was touching the drive shaft and it would only make noise under load. Also does it make the noise with the AC off?

 

At a stop light with the AC off, it will rattle like crazy, then the rpm's will sometimes go up and it will go away. With the AC on, it'll do the same thing.

 

Some people are like Slinkies - not really good for anything, but bring a smile to your face when pushed down the stairs.

Great SIG !!!! - LOL

 

Haha thanks

 

I had a 2002 s10 that did this ... It was a loose baffle in the Cat. I just lived with it and traded to my Taco,

 

Crusher 2, I checked the box. The foam gasket is still there and looks good. The entire box assembly is a little loose. I'll tighten it up when I get home from work. Thanks for the suggestion.

 

I've checked everyone's suggestions. Didn't fix it. I've banged on just about anything I can and nothing resembles the rattle. I'm convinced it's the heat shield(s). I put some new washers on some of the bolts and it seems to have helped some. However, there are a few spots on some of the shields that I can wiggle around. Not to ask a stupid question, but is there something I can put behind the spots that I can move to maybe help with the rattle?

 

Crusher 2, I lied earlier. I changed my spark plugs yesterday and removed the air box and that actually was the source of my issue. I put a thick piece of weather stripping around it and it hasn't made the noise since. Thank you!!! Damn noise was driving me nuts.