Re: Help!! Engine noise--serious, Im afraid
The flex plate is bolted to the crank shaft and in turn the torque converter bolts to the flexplate. They are in between the engine and transmission. If you get under the vehicle and look to the rear of the engine oil pan you will see a black plastic...
Re: Help!! Engine noise--serious, Im afraid
More info. What does it sound like? A tinny rattling, a buzzing, a thumping, ETC.  :Does the frequency change then the engine speed is increased? Does it change when you put it in gear? More info..........
A SWAG (scientific, wildass, guess)...