07 STI Owners, is diff noisy on highway?

RockoS13 · 10-07-2009, 07:39 PM

07 STI owners, do you ever hear a faint hum/groan on the highway while your foot is on the gas? (Maintaining speed, not accelerating). I mean *aside* from tire noise. It's like a "whiiir whiiir whiiir whiir"

I had a similar noise, only much louder, and the dealer replaced the FR wheel bearing for me. This noise is different and it it happens regardless of which way I am turning, but it does happen more often when I am turning (gradual highway turn). I also sometimes hear it while going straight.

I am just trying to figure out if I have a problem or if this is a characteristic of the car that I will have to get used to.

I am changing the fluids this weekend and hope it helps..

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simonella_virus · 10-07-2009, 09:16 PM

yeah, i get a high-pitch whine when my foot is on the gas pedal. when i let-up on the gas pedal, the sound diminishes/ goes away. it also gets louder as i accelerate. i don't know what the root-cause is, but i was going to take it to the dealership to ask them to help me troubleshoot it.

rxer311 · 10-07-2009, 09:17 PM

yes, normal...happens with mine too?

PsiAddiction · 10-07-2009, 09:19 PM

ya ditto same noise i feel its only sometimes at certain speed...

RockoS13 · 10-07-2009, 09:46 PM

whew.. I feel relieved. so either we all have a problem, or this is just a trait of the new "loud" rear diff. I can live with that!

trite · 10-07-2009, 09:54 PM

Yes all the time. It seems to occur most for me at like 45mph. I always instintivly shift up thinking that's gonna help lol. it doesn't

oversoul · 10-08-2009, 10:53 AM

Mine does it. Normally on the highway and at constant speed.

STIBungy · 10-08-2009, 02:59 PM

Mine didnt do it until I had someone swap my 5th and 6th for JDM gears. This is on my 04.

simonella_virus · 10-08-2009, 11:16 PM

yeah, that brings up an interesting question. if any of you guys shift gears (from 6th to 5th or 4th) and maintain a constant speed, do you still get the whine? is it gear related or is it for sure a diff thing?

STIBungy · 10-09-2009, 10:37 AM

I've heard the whine in 3rd and 4th, although not as noticeable as it is in 5th and 6th.

Quote:

Originally Posted by simonella_virus

yeah, that brings up an interesting question. if any of you guys shift gears (from 6th to 5th or 4th) and maintain a constant speed, do you still get the whine? is it gear related or is it for sure a diff thing?

wrxwhat · 10-09-2009, 10:44 AM

Yeap. Loudest in 5th and 6th at around 2750rpm.. Get's quieter above 3000

10-07-2009, 07:39 PM	#1
RockoS13 Scooby Newbie Member#: 161097 Join Date: Oct 2007 Location: Rockville, MD Vehicle: 2007 Subaru STI Satin White Pearl	07 STI Owners, is diff noisy on highway? 07 STI owners, do you ever hear a faint hum/groan on the highway while your foot is on the gas? (Maintaining speed, not accelerating). I mean aside from tire noise. It's like a "whiiir whiiir whiiir whiir" I had a similar noise, only much louder, and the dealer replaced the FR wheel bearing for me. This noise is different and it it happens regardless of which way I am turning, but it does happen more often when I am turning (gradual highway turn). I also sometimes hear it while going straight. I am just trying to figure out if I have a problem or if this is a characteristic of the car that I will have to get used to. I am changing the fluids this weekend and hope it helps.. * Registered users of the site do not see these ads.

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10-07-2009, 09:16 PM	#2
simonella_virus Scooby Newbie Member#: 183875 Join Date: Jul 2008 Chapter/Region: E. Canada Location: waterloo, ON Vehicle: 2007 WRX STi Stg2 WRB	yeah, i get a high-pitch whine when my foot is on the gas pedal. when i let-up on the gas pedal, the sound diminishes/ goes away. it also gets louder as i accelerate. i don't know what the root-cause is, but i was going to take it to the dealership to ask them to help me troubleshoot it.

10-07-2009, 09:17 PM	#3
rxer311 Scooby Specialist Member#: 107099 Join Date: Feb 2006 Chapter/Region: Tri-State Location: Lancaster, PA Vehicle: '07 STI Satin White Pearl	yes, normal...happens with mine too?

10-07-2009, 09:19 PM	#4
PsiAddiction Scooby Newbie Member#: 146714 Join Date: Apr 2007 Chapter/Region: NESIC Location: Concord, NH Vehicle: 2007 STI Dark Gray Metallic	ya ditto same noise i feel its only sometimes at certain speed...

10-07-2009, 09:46 PM	#5
RockoS13 Scooby Newbie Member#: 161097 Join Date: Oct 2007 Location: Rockville, MD Vehicle: 2007 Subaru STI Satin White Pearl	whew.. I feel relieved. so either we all have a problem, or this is just a trait of the new "loud" rear diff. I can live with that!

10-07-2009, 09:54 PM	#6
trite NASIOC Supporter Member#: 81658 Join Date: Feb 2005 Chapter/Region: MWSOC Location: DeKalb IL Vehicle: 2007 STI	Yes all the time. It seems to occur most for me at like 45mph. I always instintivly shift up thinking that's gonna help lol. it doesn't

10-08-2009, 10:53 AM	#7
oversoul Scooby Newbie Member#: 149325 Join Date: May 2007 Location: Memphis aka the ghetto Vehicle: 2007 WRX TR WR Blue	Mine does it. Normally on the highway and at constant speed.

10-08-2009, 02:59 PM	#8
STIBungy Scooby Specialist Member#: 51684 Join Date: Jan 2004 Location: Denver, CO Vehicle: 2004 Impreza WRX STI PSM	Mine didnt do it until I had someone swap my 5th and 6th for JDM gears. This is on my 04.

10-08-2009, 11:16 PM	#9
simonella_virus Scooby Newbie Member#: 183875 Join Date: Jul 2008 Chapter/Region: E. Canada Location: waterloo, ON Vehicle: 2007 WRX STi Stg2 WRB	yeah, that brings up an interesting question. if any of you guys shift gears (from 6th to 5th or 4th) and maintain a constant speed, do you still get the whine? is it gear related or is it for sure a diff thing?

10-09-2009, 10:44 AM	#11
wrxwhat Scooby Specialist Member#: 87653 Join Date: May 2005 Chapter/Region: South East Location: Orlando, FL Vehicle: 600 hp STI Limited	Yeap. Loudest in 5th and 6th at around 2750rpm.. Get's quieter above 3000