Rubbing sound when accelerating and decelerating - Subaru WRX Forum
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post #1 of 23 Old 12-13-2011, 01:31 PM Thread Starter
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Rubbing sound when accelerating and decelerating

I have an 08 wrx 40000 miles. When I accelerate or decelerate I notice a rubbing sound that is quite noticeable coming from my engine it sound like. Could this be motor mounts? Or something in the suspension?


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post #2 of 23 Old 12-13-2011, 01:34 PM
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Could be anything.... Could be something dragging under the car.

Does it happen when it's sitting still or just driving?
Does it happen when it's in neutral and rev'd sitting still or just driving?

Mods ?

What did you last do/have done to the car ?

Paul
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2007 STi totaled
2007 Foz XT sold
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post #3 of 23 Old 12-13-2011, 01:38 PM
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Is it constant rubbing or like pulsed?
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post #4 of 23 Old 12-13-2011, 01:42 PM Thread Starter
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It only does it when I accelerate or apply torque to the engine. Doest do it in nuetral. Seems to be only
Making the noise if the engine shifts or torque is being applied or I am slowing the vehicle down. Nothing is dragging. This weekend I put an HKS EVC S boost controller on it but it was making the noise before that.


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post #5 of 23 Old 12-13-2011, 01:43 PM Thread Starter
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I've only had the car 6 months. Invar been waiting to do things to it just started with the mods.


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post #6 of 23 Old 12-13-2011, 01:49 PM
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Dust shield from the brakes.... So when you are in neutral and coast to a stop, it doesn't do it at all ?

Got to be drivetrain if so. Didn't the 08's have throwout bearing issues?

Oh, and take that high $ POS MBC off. You tuned for it? (another issue, sorry)

Paul
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post #7 of 23 Old 12-13-2011, 01:51 PM
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It's rubbing for sure and not whining? Usually motor mounts will make sort of a thumping sound or vibrate and you can feel the vibration. Hard for me to swallow a car with 40000 on it with bad motor mounts too, unless the car has been clutched and shifted by a 6 year old it's entire life. Can you rock the motor by hand?
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post #8 of 23 Old 12-13-2011, 02:01 PM Thread Starter
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Got the mbc for 200. And I have tuned it according to specs from other drivers of the same controller with same cars and similar mods to mine. I have no issue with the mbc. It's aggressive pushing about 13.5 psi at higher rpms and a lower setting for economy. I haven't read any bad reviews about this product either, must be a preference thing.


The noise is a rubbing sound almost like a door opening that hasn't been greased in a while. Like a creaking noise but more fluid sounding and only when I apply torque Lethe engine moves.

The engine makes no sound in neutral and I can't think of anything else it is.


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post #9 of 23 Old 12-13-2011, 02:27 PM
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Is it loud enough to make a vid with audio and post it?

It is a preference thing.

Paul
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2007 WRX Sold
2007 STi totaled
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post #10 of 23 Old 12-13-2011, 02:29 PM Thread Starter
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I will try to take a video after work hopefully the sound is noticeable.


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post #11 of 23 Old 12-13-2011, 02:38 PM
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Grab someone to take the vid when you are driving and have them try to pinpoint the area.

You know as a last resort you can take it to a place with a lift and pinpoint when the car is running on the lift (albeit not the safest thing to do, it may help).

Paul
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post #12 of 23 Old 12-13-2011, 02:43 PM Thread Starter
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I will have my roomate do it tonight.


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post #13 of 23 Old 12-13-2011, 03:52 PM Thread Starter
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Also I was looking for a nice tbe with duel tips instead of single can aftermarktet. Any ideas I can't find dual tip aftermarket exhaust for 2008 wrx.


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post #14 of 23 Old 12-13-2011, 03:57 PM
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Rotors are bad.

Resident Grumpy Old Man(Keith)
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post #15 of 23 Old 12-13-2011, 04:03 PM Thread Starter
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Rotors? It makes the sound when I'm not breaking would my rotors still be making that sound?


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