Grinding when in D"" during cold idles and acceleration
The car is a 98 TA with Pacesetters and a straight pipe. Thats the only modification to the car.
On a cold start, when I put the car into Drive, I'll hear a low grinding coming from what FEELS like right under my feet (where the driver side longtube is). Under cold acceleration, it continues to grind a bit, and I hear considerably worse grinding at cold idle.
After I drive the car for a bit, the "grinding" begins to feel more like fast vibrations coming from under my feet, and becomes much less audible. The sound/feeling at idle completely goes away at idle after the car's warmed up: The ONLY time it grinds/vibrates is under acceleration.
It's not a "clunk" or "bang" so I don't think its the tranny mount. I don't think it's a bad U joint so it happens at idle, so I'm thinking it must be something with the transmission, right? Internal perhaps? I have no idea. ANY help would be great. Thanks everyone!


