Loud high pitch humming at 65 to 67 mph. - Page 5

amg destroyer · 05-04-2008, 06:14 AM

I have the whine as well (23k on the clock). But I also have Whiteline lockdown bolts. I've just accepted it as part of the car. I'm going to change the tranny and diff fluid soon, so I'll see if that helps at all.

acidbyte7 · 05-12-2008, 09:07 PM

hey whats up guys, i used to have an 02 wrx with upgraded turbo and the whole 9 yards, i just bought an 06 sti and obviously with my other car i had a few tranny problems (haha thats an under statement) so anyway theres 28000 on the odo. and i started hearing this noise everyone is talking about. im a tech at bmw so i said oh god not another trans noise, so i through the car up in the air and listened with a stethiscope. the noise we are all hearing is actually audible from 20mph till 70mph which is how fast a co worker of mine got it up to on the lift, the noise is not loud enough to hear in the cabin until about 60-70 which is when we all hear it. so i listened along the drive train and the noise was not coming from the diff but it was coming from where the u-joint is in the rear of the drive shaft.

acidbyte7 · 05-12-2008, 09:09 PM

and i dont know if this has anthing to do with the u joint but also when i put the car in reverse after it sits for a couple minutes within the first 5ft. of moving backwards i hear a click noise from the rear. anyone else have this issue?

amg destroyer · 05-12-2008, 09:23 PM

Quote:

Originally Posted by amg destroyer

I have the whine as well (23k on the clock). But I also have Whiteline lockdown bolts. I've just accepted it as part of the car. I'm going to change the tranny and diff fluid soon, so I'll see if that helps at all.

FWIW, I installed outrigger bushings and the noise has been GREATLY reduced. I don't know what this means, but I'm happy..

RoadRash · 05-13-2008, 07:01 PM

Quote:

Originally Posted by acidbyte7

hey whats up guys, i used to have an 02 wrx with upgraded turbo and the whole 9 yards, i just bought an 06 sti and obviously with my other car i had a few tranny problems (haha thats an under statement) so anyway theres 28000 on the odo. and i started hearing this noise everyone is talking about. im a tech at bmw so i said oh god not another trans noise, so i through the car up in the air and listened with a stethiscope. the noise we are all hearing is actually audible from 20mph till 70mph which is how fast a co worker of mine got it up to on the lift, the noise is not loud enough to hear in the cabin until about 60-70 which is when we all hear it. so i listened along the drive train and the noise was not coming from the diff but it was coming from where the u-joint is in the rear of the drive shaft.

Do you think replacing the u-joint would fix the problem?

Quote:

Originally Posted by amg destroyer

FWIW, I installed outrigger bushings and the noise has been GREATLY reduced. I don't know what this means, but I'm happy..

What are outrigger bushings?

acidbyte7 · 05-14-2008, 01:25 PM

well i havent brought the car to the dealer yet to get it "looked at" but im more conserned about the click noise when reversing when the wheel is at full lock

Darksabre · 05-15-2008, 11:37 AM

I had the exact same noise at around 29k miles. Took it in and the subaru tech said it was my rear diff goin bad. heh, who am I to complain. I got a new rear diff out of the deal, and the noises stopped. I'm now at 45k miles, and I can hear the noises again...ever so slight (so far).

RoadRash · 05-15-2008, 05:39 PM

At 12k miles my rear diff was diagnosed as causing the whine. The dealership replaced the diff and the noise went away. By the time I reached 13k miles the whine was back worst than it was before. Went back to the dealership and the rep told me it's normal. All I know is that it is annoying as hell. It's audible over all the other noises the car has.............wind, tires, radio, etc.

kpnorton · 06-30-2008, 10:55 AM

I have the whine as well from 65-67mph at partial (or no) throttle. It sounds like it may be normal, though from reading it's inconclusive and I'm going to follow up anyways.

Has anyone in SoCal had a dealership perform a repair under warranty for this (or similar repair) on a Stage 2 modded car? If so, where did you go?

jaydow11 · 07-04-2008, 01:06 PM

I have a wine but I'm pretty sure it's from the notorious wind wine that happens between the passanger side mirror and A pillar....

ccc187307 · 07-04-2008, 01:17 PM

It gets worse and becomes non speed dependent, on or off throttle. Sounds like an ungrounded stereo but does not change pitch. No one could identify it and then a memo came out to install some rear bracket to fix the issue. Didnt work. I had a regional rep come in from Jersey to look at it and continued to tell me that is was the spt intake. On and on it went until i told them to blow it out their a$$ and sold the car. Wrote a rather intense mail to SOA and their counter offer was invoice - $3500 on an '08. And here i am.

1loudsti · 07-04-2008, 01:21 PM

i have the diff bushing installed in my 05....i can hear the noise now im assuming its just normal diff noise that became more audible when i put the stiffer bushings in....mine hasnt gotten worse however

jaydow11 · 07-04-2008, 02:06 PM

Did anyone try chaning the read dif fluid to see if that did anything?

ditch_bound · 07-14-2008, 05:17 PM

I plan on trying a fluid change two days from now. Ill let you know what happens.

Dji · 07-15-2008, 12:59 PM

Just for my personal info, someone got this humming with a one piece driveshaft?

Thanks

05-04-2008, 06:14 AM	#61
amg destroyer GUNNIN' IT Car: '05 STi Fav Mod: Sparco seat Location: OC Posts: 3,794 Join Date: Sep 2006 Trader Rating: (3)	Re: Loud high pitch humming at 65 to 67 mph. I have the whine as well (23k on the clock). But I also have Whiteline lockdown bolts. I've just accepted it as part of the car. I'm going to change the tranny and diff fluid soon, so I'll see if that helps at all. This ad is not endorsed by this member. Please register or login to hide this ad. Last edited by amg destroyer : 05-12-2008 at 09:22 PM.

05-12-2008, 09:07 PM	#62
acidbyte7 Lurker Car: white 06 sti Fav Mod: Coming Soon Posts: 4 Join Date: Apr 2008 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. hey whats up guys, i used to have an 02 wrx with upgraded turbo and the whole 9 yards, i just bought an 06 sti and obviously with my other car i had a few tranny problems (haha thats an under statement) so anyway theres 28000 on the odo. and i started hearing this noise everyone is talking about. im a tech at bmw so i said oh god not another trans noise, so i through the car up in the air and listened with a stethiscope. the noise we are all hearing is actually audible from 20mph till 70mph which is how fast a co worker of mine got it up to on the lift, the noise is not loud enough to hear in the cabin until about 60-70 which is when we all hear it. so i listened along the drive train and the noise was not coming from the diff but it was coming from where the u-joint is in the rear of the drive shaft.

05-12-2008, 09:09 PM	#63
acidbyte7 Lurker Car: white 06 sti Fav Mod: Coming Soon Posts: 4 Join Date: Apr 2008 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. and i dont know if this has anthing to do with the u joint but also when i put the car in reverse after it sits for a couple minutes within the first 5ft. of moving backwards i hear a click noise from the rear. anyone else have this issue?

05-14-2008, 01:25 PM	#66
acidbyte7 Lurker Car: white 06 sti Fav Mod: Coming Soon Posts: 4 Join Date: Apr 2008 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. well i havent brought the car to the dealer yet to get it "looked at" but im more conserned about the click noise when reversing when the wheel is at full lock

05-15-2008, 11:37 AM	#67
Darksabre Silver Member Car: 05 Subaru WRX STi Location: Gardner, KS Posts: 118 Join Date: Feb 2007 Trader Rating: (3)	Re: Loud high pitch humming at 65 to 67 mph. I had the exact same noise at around 29k miles. Took it in and the subaru tech said it was my rear diff goin bad. heh, who am I to complain. I got a new rear diff out of the deal, and the noises stopped. I'm now at 45k miles, and I can hear the noises again...ever so slight (so far).

05-15-2008, 05:39 PM	#68
RoadRash Amateur STI Driver Car: Black 06 STI Location: OH Posts: 26 Join Date: Jul 2007 Trader Rating: (1)	Re: Loud high pitch humming at 65 to 67 mph. At 12k miles my rear diff was diagnosed as causing the whine. The dealership replaced the diff and the noise went away. By the time I reached 13k miles the whine was back worst than it was before. Went back to the dealership and the rep told me it's normal. All I know is that it is annoying as hell. It's audible over all the other noises the car has.............wind, tires, radio, etc.

06-30-2008, 10:55 AM	#69
kpnorton Junior STI Driver Car: 2007 OBP STi Fav Mod: shifter bezel red Sharpee STi logo Location: OC, CA Posts: 57 Join Date: Jun 2007 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. I have the whine as well from 65-67mph at partial (or no) throttle. It sounds like it may be normal, though from reading it's inconclusive and I'm going to follow up anyways. Has anyone in SoCal had a dealership perform a repair under warranty for this (or similar repair) on a Stage 2 modded car? If so, where did you go?

07-04-2008, 01:06 PM	#70
jaydow11 Silver Member Car: 06 STI UGM Fav Mod: Right Foot! Location: Kelowna, BC, Canada Posts: 1,015 Join Date: Jul 2006 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. I have a wine but I'm pretty sure it's from the notorious wind wine that happens between the passanger side mirror and A pillar....

07-04-2008, 01:17 PM	#71
ccc187307 Junior STI Driver Car: AW 08 STi Fav Mod: 05 to 08! Location: Northcentral PA Posts: 174 Join Date: Jun 2008 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. It gets worse and becomes non speed dependent, on or off throttle. Sounds like an ungrounded stereo but does not change pitch. No one could identify it and then a memo came out to install some rear bracket to fix the issue. Didnt work. I had a regional rep come in from Jersey to look at it and continued to tell me that is was the spt intake. On and on it went until i told them to blow it out their a$$ and sold the car. Wrote a rather intense mail to SOA and their counter offer was invoice - $3500 on an '08. And here i am.

07-04-2008, 01:21 PM	#72
1loudsti Grassroots STI Racer Car: CGM 05 Fav Mod: stock BPV ;) happy gabe? Location: racine,wi Posts: 516 Join Date: Mar 2008 Trader Rating: (1)	Re: Loud high pitch humming at 65 to 67 mph. i have the diff bushing installed in my 05....i can hear the noise now im assuming its just normal diff noise that became more audible when i put the stiffer bushings in....mine hasnt gotten worse however

07-04-2008, 02:06 PM	#73
jaydow11 Silver Member Car: 06 STI UGM Fav Mod: Right Foot! Location: Kelowna, BC, Canada Posts: 1,015 Join Date: Jul 2006 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. Did anyone try chaning the read dif fluid to see if that did anything?

07-14-2008, 05:17 PM	#74
ditch_bound Lurker Fav Mod: Coming Soon Posts: 6 Join Date: Jan 2008 Trader Rating: (0)	Re: Loud high pitch humming at 65 to 67 mph. I plan on trying a fluid change two days from now. Ill let you know what happens.

07-15-2008, 12:59 PM	#75
Dji Junior STI Driver Car: 04 White STi Location: Montreal, QC Posts: 64 Join Date: Apr 2007 Trader Rating: (1)	Re: Loud high pitch humming at 65 to 67 mph. Just for my personal info, someone got this humming with a one piece driveshaft? Thanks This ad is not endorsed by this member. Please register or login to hide this ad.