hey guys i have a lil annoyning problem.lets i driving at very low rpms like 3rd gear 1500 rpm this rattle appears and its pretty loud.in the other forums they told me its either like a pulley bearing or the t conveter bolts.i said to my self how the heell can it be the t con bolts?any expiernce with this problem

 

You really haven't supplied enough information, but the first thing I'd check is the heat shield on the cat(s). They tend to work loose and rattle at low rpm's.

 

Hey, I had some terrible sounds coming from under my car at low RPM's and it turned out the the filter element in my CAT broke loose causing grinding and thumping sounds at low speeds... just a possibility... usually it is the simple things...
bubba353z is right, could you supply a little more info

 

ohh no problem, i have headers and no cats so its not the cats nore the sheilds .yes i know wat broken cats sounds like and its very similair to the sound i have.so i need help

 

well i check the converter bolt the other day and they were tight like a monster ,so thats not it.if i pay around with the steering in drive i can make the rattle noise .but then my buddy had his head in the engine bay and said u cant hear the noise, that it sounds more coming from under the car