1 rod knock need help

My 06 dc sounds like a diesle the more I drive it the louder it get but when I baby it not as loud I'm not a gearhead but to me it sounds like its gonna come right through the block how do I tell if its a rod or if it something else.
140k kms

 

What makes you think its a rod knock and not a main bearing?

 

Ok, so If I have any kind of serious mechanical failure I should see some signs of wear in the form of shavings in my oil.

I'm also having a noise, but I was using my stethoscope and it really sounds like a valve tapping. I really don't want to do a top overhaul. I'm just going to try an engine flush, and change and a tune-up. I'm going to try and pinpoint the problem now.

 

Do not use an engine flush. It causes more problems than it solves.

A rod knock will be half the speed of Tacoma's normal ticking valve noise. Rod knock will sound more like a tock than a tick.

If you find that you have, or think you have a rod knock, stop driving it. The stress of running it will grenade the engine turning a simple rebuild into a replacement.

 

Thanks guys big help after draing my oil and finding the shavings I came to the conculsion of a main bearing or rod bearing and my extended warrenty will take care of the rest.
Who would thought buying an extended warranty would be a good thing
Toyota couldn t figure it out but tacoma world did

 

While there working on it should I replace all the bearings?