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Old 04-26-2012, 09:10 PM   #1
e46dub
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Question womp womp when driving occasionally? rubbing?

Okay, weird problem. I've owned this car for a month now. But I've noticed sometimes after leaving a parking spot, or being stopped for a while on occasion I get a "rubbing" noise... like a womp womp..

very strange. Anywhere I should look to see? It sounds like its coming from the front end....


Also, at times shifting into first gear coming to a stop (to leave in gear to park) my rear end makes a little thump. This also happens being at a dead stop and putting it into 1st to go from a stop light. Not always but quite a bit.
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Old 04-26-2012, 09:16 PM   #2
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check diff fluid
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Old 04-26-2012, 09:18 PM   #3
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are there any write ups or how to on that? I've only ever driven fwd cars. I know there are 2 drain plugs (just looked) but im not sure how to "check the level" since there isnt a stick or anything.

also, my car has 140k on the clock. would it be a good time to just drain and refill? and what are the best fluid to put in. I love this car.
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Old 04-26-2012, 09:21 PM   #4
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you remove the upper (fill) plug if fluid comes out, its at the level. if its not then its too low.
yes, you really should change it.
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Old 04-26-2012, 09:39 PM   #5
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you remove the upper (fill) plug if fluid comes out, its at the level. if its not then its too low.
yes, you really should change it.
Do as he say!

Also replace the rear diff/tranny fluid.

Used approved fluid only! Red line is what I used(diff) with great results and noticeable only by DD like me to my Beamer.

summit racing has it in stock located south Atlanta,ga.

Oreailly auto parts has pentosion ATF fluid 4 transmission.
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Old 04-26-2012, 09:44 PM   #6
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I had the same thing. Tires were bad due to control arm bushings I believe. I put some new bushings in and swapped tires fixed the issue.
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Old 04-26-2012, 09:48 PM   #7
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As far as the rear noise I have that also. Put the rear on jack stands and watch the rear diff and subframe bushings as someone puts it in drive and reverse. It was very apparent that my bushings were bad as you can see the bushings separate. Starting on replacing mine Saturday.
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Old 04-26-2012, 09:50 PM   #8
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thump is normal, just the driveline being loaded from putting it into drive

the rubbing noise description is too indescript to give a better diagnosis.
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Old 04-26-2012, 10:01 PM   #9
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so replace both the trans and rear diff fluid? is there a diff in the front? because it really sounded like the womp womp was in the front.

anyways. iwouldnt be against changing them, who knows if its ever been done.

do autozone/advance auto/oreillys stock any "approved oil?
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Old 04-28-2012, 09:36 PM   #10
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i think its my brakes believe it or not. i rolled with the clutch depressed forward and it made the noise. going to do the brakes and see
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Old 04-28-2012, 09:50 PM   #11
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Originally Posted by e46dub View Post
Okay, weird problem. I've owned this car for a month now. But I've noticed sometimes after leaving a parking spot, or being stopped for a while on occasion I get a "rubbing" noise... like a womp womp..

very strange. Anywhere I should look to see? It sounds like its coming from the front end....


Also, at times shifting into first gear coming to a stop (to leave in gear to park) my rear end makes a little thump. This also happens being at a dead stop and putting it into 1st to go from a stop light. Not always but quite a bit.
Womp womp from the front, and a rubbing noise, makes me think of something going on in the front, and something related to tires, tires rubbing, maybe wheel well liner loose, maybe coz you're turning or you're too slammed/ too wide?

Sometimes tires get flatspotted from sitting a real long time, like before you owned it, and sometimes you'll get a stone stuck in the tread and not hear it when you're moving faster.

The rear clunk might be the rear diff bushing, but it doesn't sound too bad...maybe coz you're shifting into first while moving...and rev matching isn't quite right?
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Old 04-28-2012, 09:51 PM   #12
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i think its my brakes believe it or not. i rolled with the clutch depressed forward and it made the noise. going to do the brakes and see
not really. you clutch depressed but the whole drivetrain back is still spinning.
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Old 04-28-2012, 10:06 PM   #13
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^ oh yea...that too! I'm not saying it's not diff fluid, but start with where you think the sounds are coming from to look for obvious issues. Rubbing is usually obvious. I'm not sure if you can easily see a flat spotted tire, but you probably would notice something. Maybe remove the tire and roll it...oh, and in case you haven't checked tire pressure, do that too!
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Old 07-29-2013, 07:46 PM   #14
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I've got a weird bass sound that comes out of the rear of my car when Im driving in town around 30-40 mph. its like a boooomb and does it very erratically. Never at high speeds. I just did a full tranny filter change and flush. I cant figure it out.
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Old 07-31-2013, 01:14 PM   #15
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I've got a weird bass sound that comes out of the rear of my car when Im driving in town around 30-40 mph. its like a boooomb and does it very erratically. Never at high speeds. I just did a full tranny filter change and flush. I cant figure it out.
Wheel bearings? I had an indy shop look at my car to figure out my transmission problem. Separate from the transmission problem I have that bass thing happening too. They determined it's the front wheel bearings.
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Old 07-31-2013, 02:16 PM   #16
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I've got a weird bass sound that comes out of the rear of my car when Im driving in town around 30-40 mph. its like a boooomb and does it very erratically. Never at high speeds. I just did a full tranny filter change and flush. I cant figure it out.
I'm guessing wheel bearing could be going out.
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Old 07-31-2013, 02:16 PM   #17
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Have someone walk closely behind? Localize the noise before you go bat sh!t on replacing the whole rear.
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