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Old 06-19-2011, 09:38 PM   #1
FunPoliceSam
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Clunking noise in reverse/drive

I am getting a clunking noise when I put my gears in reverse. Also getting the same noise outta reverse and into drive. Sounds like it comes from below the car.

I got a STEP with 173k miles. Is my clutch dieing?
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Have any of you heard of "sloming"? Supposedly, high school students are sticking leeches to themselves in exchange for some kind of high. Since when did this become the new thing? What happened to just kicking back with a group of your close friends and smoking a joint?
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Old 06-19-2011, 09:52 PM   #2
wasp9166
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guibo maybe

http://www.pelicanparts.com/BMW/tech.../E36-Guibo.htm
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Old 06-19-2011, 11:45 PM   #3
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Well, obviously since you have an automatic you don't have a clutch-so that's not the problem. It's possible that the flex disc (also, but incorrectly, referred to as the guibo) might be the issue if the sound seems to come from directly under the shifter area. If you are hearing the noise coming more from the rear of the car, then it's more likely the differential bushings-and most likely its the rear diff bushing. My rear differential bushing is worn, and when I put the car into reverse I can hear the clunk. It doesn't clunk when I put it into drive.
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Old 06-20-2011, 12:03 AM   #4
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I have had and still am dealing with a problem similar to this. Probably the rear differential bushings are a good place to start. If possible get the car off the ground and look under it while someone is shifting gears, when I did this you could clearly see the rear diff moving around. While rear diff bushings helped my problem I still get a very metallic clank (instead of the clunk which was fixed by the bushings). I am still trying to fix this but I think it has something to do with the flex disc or some drive shaft support bearing (or something like that). I took a video of the sound that mine is making, does it sound like this (from outside the car)?
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Old 06-20-2011, 01:15 AM   #5
FunPoliceSam
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yea i dont know why i said clutch lol, i was reading another thread with clutch issues and its like 100 degrees here in CA and my AC broke.



yea it doesnt sound like that video, definately a stronger clunk.

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Originally Posted by Eric Giles View Post
Well, obviously since you have an automatic you don't have a clutch-so that's not the problem. It's possible that the flex disc (also, but incorrectly, referred to as the guibo) might be the issue if the sound seems to come from directly under the shifter area. If you are hearing the noise coming more from the rear of the car, then it's more likely the differential bushings-and most likely its the rear diff bushing. My rear differential bushing is worn, and when I put the car into reverse I can hear the clunk. It doesn't clunk when I put it into drive.
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Originally Posted by nikkei325i View Post
Have any of you heard of "sloming"? Supposedly, high school students are sticking leeches to themselves in exchange for some kind of high. Since when did this become the new thing? What happened to just kicking back with a group of your close friends and smoking a joint?
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Old 06-20-2011, 01:22 AM   #6
computerwhiz1
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I would say differential bushings then. Does it clunk when shifting gears while driving or just when shifting into gear while stopped?
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Old 06-20-2011, 06:48 AM   #7
Bimmage01
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I had a clunking when putting it into reverse since the day i bought it. A year later ....no reverse lol

6MT swap FTW
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Old 06-20-2011, 10:16 AM   #8
computerwhiz1
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Just for reference so we can relate this to other similar problems, do you guys have GM of ZF transmissions?
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Old 06-29-2011, 11:38 PM   #9
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set up a camera under your car looking up at the larger bushing on the rear of the differential (about 2.5" diameter) then hold the brake and shift between drive and reverse then review the footage. I had to replace the one on my wife's 99' 323i e46 and it made all the difference in the world... But you can likely see the damage to the bushing if you are getting a loud clunk and the bushing is in fact the culprit...

Here are some photos, in the first one- this is the view in from the driver rear wheel well but you can easily see the bushing from underneath the car. the bushing is about half way up the photo and 1/3 way in from the right side... see the next photos as reference of what you're looking at.




This is a close up of the bushing, you can see the cracks in it... this is on my 03' 330i manual... just starting to feel a bit funny but no clunk yet, the bushing on my wifes car was a lot more obvious with much of the rubber in the center of the bushing actually missing.

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