bmw 2001 330xi intermittent vibration
I have a 2001 330xi. 130k miles. I have had a intermittent vibration since I bought the car. It happens at 60 and faster under load. it last 5 seconds then goes away for 5 second. Also if its vibrating and I let off of gas it stops. I have replaced both front axles, driverside pedastal(complete kit), front diff, rear diff. rear driveshaft joints feel good. front driveshaft looks ok but front yoke on transfer case seems to have play. I'm assuming this would be similar to having a bad u-joint but what confuses me is it comes and goes in cycles under load. i have had bad u-joints before and know the faster u go the worse it gets and isn't intermittent.