The last couple of days,I can hear a strange clicking noise coming from under the truck,but only during acceleration.It almost sounds like pebbles hitting the bottom of the truck.Im thinking maybe the cat has gone bad.Any thoughts would be apprecited.

 

Could be the cat, maybe the ujoints.
If you rev the engine in neutral can you hear it?

 

No noise when rev in neutral or when coasting,only when i get on the gas.

 

That makes me think u-joints. I ahve a weird rattle noise in my truck when flooring it above 4,000RPM. Can't tell if its my toolbox, somethin in the door, or if its jsut vibration from my loud exhaust.

 

when i see a video..... lol

 

do you have a tie-wrap around your drive-shaft like someones messing w/you?

 

No tie wrap,are you speaking from experience lol ....

 

No I have not had that happen to me, but I have done it to alot of my friends

 

i had something really similar like this happen to my 04 silverado and it ended up being the cat went bad. is it normally louder when truck is cold and somewhat goes away when warm?

 

How does the cat go bad on a 04, the one on my 89 was original in 04, with 290,000 miles.