Need Help, Clunking noise from floor board

[Ryan98MechamT/A]

Under WOT I have a clunking sound that comes from just beneath the center console. I have a 98 Trans Am with an A4 tranny. I just replaced the worn stock tranny mount with a new Energy Suspension mount but it did not alleviate the problem. Anyone else have any ideas what the problem can be.

Thanks in advance.

Ryan

[lower et then u]

?????

DO U HAVE A STOCK Y PIPE OR A AFTER MARKET ONE ????

[Ryan98MechamT/A]

Hooker LT's and Hooker ORY, the clunking also seems to feel like vibrating as well. Got any ideas?

[12stones]

its your exuast knocking the bottom of your cab, atleast thats how mine is, really bad in reverse going up a slight hill

[MN6WS6]

It could be all sorts of things. U-joints, exhaust hitting the underside of the car, exhaust hitting the wimpy factory g-load brace, something misaligned or not properly bolted down, etc. I'd start with the exhaust, as my pipes were hitting the g-load brace. 4 bolts, problem solved

[Ryan98MechamT/A]

It really sounds like a rotating part, Ill get underneath the car tomorrow and look for any signs of anything. Thanks for the suggestions. I do appreciate it.

Ryan

[95formula]

Check the u joint, they make vibrations while you taking off.

[Ryan98MechamT/A]

I was thinking that that might be it from the start, but when I was underneath the car today, everything seemed fine. The torque arm mount was extremely squishy and looked like it could use replacement, which I have sitting here, just not the time to replace it.


It only does it under WOT during 1st and 2nd gear.