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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > Drivetrain Components


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Old 11-12-2006, 10:21 PM   #1
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Default Shed some light on my axle/diff problems and noises *UPDATE* PICTURES NOW

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Last edited by BayRain; 07-27-2007 at 08:55 PM.
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Old 11-13-2006, 12:33 PM   #2
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Come on guys, someone has to have some ideas...

???
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Old 11-14-2006, 07:40 AM   #3
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get your car off the ground, by either jack stands or a lift and inspect all the rotating components of the drive train from the tranny out. i've had small rocks get stuck in my brake caliper and start whacking the wheel weights and make a similar noise, although they wore out the weight quickly. i've also heard of instances of a pebble getting stuck in the front of the driveline cover at the rear diff. good luck.
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Old 11-18-2006, 10:51 AM   #4
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are you lug nuts tight?

DCCD in auto?
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Old 11-18-2006, 11:04 AM   #5
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While I wouldn't describe it as a popping sound, check the hanger bearing on the propeller shaft and it could possibly be a wheel bearing, especially if you've been launching lately. I think there is a PDF here somewhere that shows how to do a diagnostic check of the axles to see if they have "twisted".

The other obvious things are to check your rear diff oil. Drain it and check for any bits of metal. Check your endlinks to make sure they aren't bent and rubbing against the lateral links. Failing that, take it to a mechanic and have them hook up a listening device.

Good luck.
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Old 11-20-2006, 05:24 PM   #6
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Thanks for the responses guys, let me address some of them.

My lug nuts are tight to factory specs.
DCCD is in auto.
I have inspected endlinks and all axles--including circular driven tests to rule out axles.
No launches at all.
Just changed Rear Diff. oil 1000 miles ago with no metal shavings at all.

So I guess my only option is to take it to a mechanic. I hate noises.
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Old 11-26-2006, 12:07 AM   #7
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How many miles again? Could be the axle nuts getting loose.
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Old 11-27-2006, 02:59 PM   #8
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I just found out my transfer case is coverd with green layer of grease....
Its comming from the driver side axle shaft...06 Sti with 6k miles...
Before i knew about this leak, i noticed a hamming noise @ 60-65mph...since im new to the sti, i thought it was how awd sounds like...LOL....
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Old 11-27-2006, 03:01 PM   #9
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a constant hammering noise normal?

not in any car i know of.

how'd you break it?
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Old 11-27-2006, 03:22 PM   #10
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Quote:
Originally Posted by T3h_Clap
a constant hammering noise normal?

not in any car i know of.

how'd you break it?
No... my bad.... not hammering....I meant like haming..Hmm hmmm... LOL sounds just like when my mustags rear end axelshaft seals went..somewhat of a grinding niose.......
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Old 11-27-2006, 03:25 PM   #11
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I cant say how disappointed i am..right now...I have TBE on my sti,

and my subaru dealer wont work on it.....
I need the stock down pipe asap.......im so close to putting my car up for sale after its fixed.............
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Old 11-27-2006, 03:31 PM   #12
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Hmm, well I dont know how this thread got turned into a transfer case thread...but, the car has around 50k on it.

BTW- Im just messin around. Hope you figure your problem out.

You know what I just realized, the noise sounds exacly like when you turn a coilover collar/spring perch that is a bit rusty or stuck. It sounds like the coilover collars are moving. However, I just checked them and they are all tight as can be.

This is weird to say the least.
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Old 11-27-2006, 03:39 PM   #13
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do you have enough tension on the springs?
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Old 11-27-2006, 05:56 PM   #14
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It is funny you mention that because the rear coilovers are exhibiting something strage.

When I have the adjuster spring perch to the maximum height (in range according to KW's website) in the rear, the car is still incredibly low. 12" range. So I have them above the maximum height range at the moment and my car is at 13.2"-13.3".

The performance certainly doesn't suffer, but it is something that I have been meaning to contact KW about.

It still doesn't address the front noises though...
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Old 11-28-2006, 04:03 PM   #15
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Same sound is there...I have yet to replace the axle nuts. I have also contacted Tom at KW about the suspension poblem and we are in the process of working that out. That is a separate issue though. The main noise is in the front.

PICTURES ABOVE!


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