So i tried the trans fluid trick still did the intermittent knock. Nothing at start up in the morning while warming the car up. started to knock after driving for a few minutes. Between 1500-2000 rpms it goes away (or cant hear it). After 45 minutes of driving, so dropping the kids of and getting to work it had quit the knock noise. i checked the flex plate for cracks and found nothing. i would think a lower end knock would be consistent and not come and go. Suggestions guys? realy driving me crazy
