Tranny Noise or Diff? Or....

[Simontibbett]

So, more questions about my new E30. lol

It has a loud humming noise in the car and while in gear even cruising I hear a whine. When accelerating you can feel a vibration around 2,500RPM or so and I noticed in sharp corners getting on the throttle sort of hard I could feel a vibration from the right rear.

Diff? Axles? Tranny? All?

The car shifts smooth, no issues there, I also noticed the whine noise is only in gear which makes me think tranny and the loud humming is in gear or not, doesn't matter.

I haven't had a chance to get under the car yet to see if there are any visible signs, just seeing if there is some place to start.

[Zasz]

I'd say diff.

[Garageaholic]

Sometimes the rear bearings could whine like that on acceleration, deceleration, or when turning.

[future rs]

Sometimes the rear bearings could whine like that on acceleration, deceleration, or when turning.

Sorry to bump such an old thread. But I have a whinning noise coming from the back. If the car has a limited slip is it normal for these cars to make a little noise from the rear end?

[jlevie]

Sorry to bump such an old thread. But I have a whinning noise coming from the back. If the car has a limited slip is it normal for these cars to make a little noise from the rear end?

Not when driving straight. A whining noise then will be incorrect clearance between the ring and pinion from wear, or bad differential or wheel bearings.