first RWD car, strange sound from rear
9/16/09, 11:03 PM
#1
Mach 1 Member
Thread Starter
Join Date: September 10, 2009
Location: Boston
Posts: 956
Likes: 0
Received 0 Likes
on
0 Posts
first RWD car, strange sound from rear
When i am driving along anywhere from 20 on up mph i can hear coming from the back a faint mechanical whine. I am familiar with the transmission whine but this sounds more like a high pitched meshing or almost scraping but not quite. It is pretty soft if the windows are down even at only 30mph i cant hear it. I thought maybe it could be the rear diff? or related to the axle? something normal i just have not experience because i have never owned RWD before. any thoughts would be appreciated. My guess is its nothing but i figured i would throw it out here before engaging the dealer service and such. thanks in advance
9/17/09, 12:31 AM
#2
Shelby GT500 Member
Join Date: January 30, 2004
Location: Riverside, CA
Posts: 2,916
Likes: 0
Received 0 Likes
on
0 Posts
So it starts at 20mph, does it get louder or go away at a certain speed?
If it stays soft, its normal. Although some are more silent than others.
If it bothers you, get it warrantied. They can put a new gearset and get you silent.
If it stays soft, its normal. Although some are more silent than others.
If it bothers you, get it warrantied. They can put a new gearset and get you silent.
9/17/09, 07:35 AM
#5
Mach 1 Member
Join Date: December 16, 2007
Location: West Chicago
Posts: 651
Likes: 0
Received 0 Likes
on
0 Posts
It's probably your differential, give it a little time, sometimes when the gears break in a little they stop whining as much. If it gets louder or it's really unnerving, do what ManEhawke said and don't be afraid to use your warranty -- rear differential gears can be tricky things to get quiet. Mine have whined from the day I got it, but only up to about 25 mph.
Of course... you could also upgrade your exhaust -- drowning out the whine is a great way to deal with it!
Of course... you could also upgrade your exhaust -- drowning out the whine is a great way to deal with it!
9/17/09, 07:48 AM
#6
Mach 1 Member
Thread Starter
Join Date: September 10, 2009
Location: Boston
Posts: 956
Likes: 0
Received 0 Likes
on
0 Posts
No its not loud enough at all to bother me and although it the meshing sounds increases in frequency as i speed up it does not really get any louder. I only heard it the first time driving on the highway, windows up, radio off. but once i heard it my mind tunes my ears to it i find myself turning the radio off to see if i can hear it. if its normal i will just relax and tune it out. I would hate to have a new set of gears put in and those be louder.
9/17/09, 04:01 PM
#9
Mach 1 Member
Join Date: March 29, 2007
Posts: 766
Likes: 0
Received 0 Likes
on
0 Posts
9/17/09, 08:08 PM
#10
Mach 1 Member
Thread Starter
Join Date: September 10, 2009
Location: Boston
Posts: 956
Likes: 0
Received 0 Likes
on
0 Posts
9/18/09, 08:00 PM
#12
I hear you man.
I've got this strange whining type sound sound that comes from under my hood. It's noticeable at idle but just keeps getting louder as I accelerate.
Actually between the LT headers and the Borlas I can hardly hear it sometimes though.
I agree with everyone above about your situation, because they are all far smarter than I.
I've got this strange whining type sound sound that comes from under my hood. It's noticeable at idle but just keeps getting louder as I accelerate.
Actually between the LT headers and the Borlas I can hardly hear it sometimes though.
I agree with everyone above about your situation, because they are all far smarter than I.
Thread
Thread Starter
Forum
Replies
Last Post