Hey All,
So, I've been reading up on bimmer forums and r3v for a while and have been provided with all the info I have needed without ever having to start my own thread.
I am finally stumped, so here is my issue, hopefully someone could shine some light on what my problem is.
I have an 89 325is with a 4.10 lsd, for some time, I have had a seemingly randomly occuring clicking coming from the right rear of the car (could be closer to the center, but seems to be from the right)
In the past few weeks, it has become louder and more frequent.
It can be heard from inside the car when accelerating very very slowly up to about 25 mph, and when coasting to a stop, whether the clutch is engaged or not again from 25 to 0.
It can be heard from outside the car when under a WOT load. It is more noticable when there is weight in the back seat or the trunk.
It is definately at the same rythm that the wheels are turning, not the drive shaft. No vibration or thud can be felt, it is only the noise.
Now for what I have checked. I have experienced bad wheel bearings, and it has no symptoms of that, I commute with the car about 800 miles a week, doing about 160 miles on the highway a day, there is no heat to the hub immediately after getting off the highway. there is no up and down, left and right, or in and out play in the wheel when jacked up. However with the rear end off the ground, in first gear, there is about 3 inches of play when rotating the wheel back and forth, and it does click louder than the driver side rear when doing that.
There are no tears in the axle boots, and no noticeable play in the axle/cv.
Now for the thing that seemed very strange to me, today just for shats n giggles i drained the diff (fluid came out clean, and did not seem to be low at all.) I re-filled the diff with Mobil 1 full synth 75w120 for LS Diffs. While I was under the car, I re checked how everything looked, and no changes. Only change is now the sound is MUCH louder and MUCH more frequent, but still only occuring under the circumstances listed above.
I know there is a lot of talk about the driveshaft CSB being the culprit, but I have checked it for play, and it had seemingly no play, looked good, and I am sticking to my guns about the sound definately coming from as far back as the diff, and the right side of the car.
I have an overhaul of the front end planned for this weekend (control arms, bushings, ball joints, sway bar end links, and tie rod inner and outers. I am also prepared to replace the axle (with a known good used axle) and shock mounts in the rear.
If anyone has read this far, I would greatly appreciate any opinions or insight.
Thanks again for your time guys
So, I've been reading up on bimmer forums and r3v for a while and have been provided with all the info I have needed without ever having to start my own thread.
I am finally stumped, so here is my issue, hopefully someone could shine some light on what my problem is.
I have an 89 325is with a 4.10 lsd, for some time, I have had a seemingly randomly occuring clicking coming from the right rear of the car (could be closer to the center, but seems to be from the right)
In the past few weeks, it has become louder and more frequent.
It can be heard from inside the car when accelerating very very slowly up to about 25 mph, and when coasting to a stop, whether the clutch is engaged or not again from 25 to 0.
It can be heard from outside the car when under a WOT load. It is more noticable when there is weight in the back seat or the trunk.
It is definately at the same rythm that the wheels are turning, not the drive shaft. No vibration or thud can be felt, it is only the noise.
Now for what I have checked. I have experienced bad wheel bearings, and it has no symptoms of that, I commute with the car about 800 miles a week, doing about 160 miles on the highway a day, there is no heat to the hub immediately after getting off the highway. there is no up and down, left and right, or in and out play in the wheel when jacked up. However with the rear end off the ground, in first gear, there is about 3 inches of play when rotating the wheel back and forth, and it does click louder than the driver side rear when doing that.
There are no tears in the axle boots, and no noticeable play in the axle/cv.
Now for the thing that seemed very strange to me, today just for shats n giggles i drained the diff (fluid came out clean, and did not seem to be low at all.) I re-filled the diff with Mobil 1 full synth 75w120 for LS Diffs. While I was under the car, I re checked how everything looked, and no changes. Only change is now the sound is MUCH louder and MUCH more frequent, but still only occuring under the circumstances listed above.
I know there is a lot of talk about the driveshaft CSB being the culprit, but I have checked it for play, and it had seemingly no play, looked good, and I am sticking to my guns about the sound definately coming from as far back as the diff, and the right side of the car.
I have an overhaul of the front end planned for this weekend (control arms, bushings, ball joints, sway bar end links, and tie rod inner and outers. I am also prepared to replace the axle (with a known good used axle) and shock mounts in the rear.
If anyone has read this far, I would greatly appreciate any opinions or insight.
Thanks again for your time guys
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