Go Back   Club Lexus Forums > Lexus Model Forums > SC Models > SC 400/300 > Performance & Maintenance
Sign in using an external account
Register Forgot Password?
Register Photos FAQ Members Calendar Search Today's Posts Mark Forums Read GarageUsed CarsVendors TSBs & Recalls

Welcome to Club Lexus!
Welcome to Club Lexus, the world's largest and most active online community of Lexus owners and enthusiasts.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Club Lexus community today (click here to register)!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 02-03-07, 07:50 PM   #1
Danimal
Lead Lap
1995 Lexus SC
My Garage
Trader Score: (0)
 
Join Date: Dec 2005
Location: Indiana
Posts: 459
Send a message via AIM to Danimal
Default Strange whirring noise?

Whirring noise is the best I can describe it. But it happens at speed regardless of my input. So rev range, gear, clutch in or out, brakes, steering, or going over bumps doesn't effect this problem. I'm at a major loss and it's starting to worry me. My search of the board for "whirring noise" turned up one thing, the infamous center driveshaft bearing. The car doesn't rumble, shake, or otherwise act any different that it did before, except for this noise. Is that it?

Although I had heard the whirring earlier that morning as I was driving over ice I didn't think anything of it; I really noticed it on Friday coming home from work because when I hit 45 coming off the highway I heard a decently loud high-pitched noise. It didn't really sound like anything in particular, but by the time I hit 40 it was completely gone and was replaced by the whirring, which got lower and slower as I slowed to a stop. I could not locate the sound, at first I thought it sounded like it was coming from the front-right; but now I think it's somewhere around the transmission. Hard to explain; probably harder to understand. It almost seems like right before it starts I hear and air-y type noise (is that even related?), then it's replaced by whirring.

Now any time I move my car above 20mph (although sometimes it'll do it from a stop) the whirring comes back until I hit 45, when it hits the high pitched noise stage. Above 50 it is COMPLETELY gone, there is no noise. So uh.............. anyone have any idea what that could be? Or is it time to junk her? =P

She's a '95 300 5-speed. Almost 113k on the old odometer.

Thanks in advance.

-Dan
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
Danimal is offline   Reply With Quote
Old 02-03-07, 08:22 PM   #2
MJHSC400
Lexus Test Driver
Garage is empty, add now
Trader Score: (0)
 
Join Date: Nov 2006
Location: AR
Posts: 1,306
Default

Well, the hydraulic fan makes some strange noise on the SC400-- but yours is a viscous coupling or something, but could be the culprit still--

Maybe listen closer while under the hood--
__________________
99 ES300 250k and still going strong
92 SC4 sold with 180k and ran perfect

I have a dodge truck but nobody probably cares, but it's faster than any lex I've owned so far...
MJHSC400 is offline   Reply With Quote
Old 02-03-07, 09:26 PM   #3
O. L. T.
Keeper of the light
2006 Ford F-150
My Garage
Trader Score: (15)
 
O. L. T.'s Avatar
 
Join Date: Feb 2003
Location: 1997
Posts: 33,175
Default

moved.



.
__________________
O. L. T. is offline   Reply With Quote
Old 03-08-08, 09:58 PM   #4
damnDSM
Driver School Candidate
Garage is empty, add now
Trader Score: (0)
 
Join Date: Jan 2008
Location: Florida
Posts: 17
Default

Bringing this one back to life. Sorry guys, but I am not having much luck with the search feature :O

I too am having a "whirring" sound. Best compaired to the sound of off road truck tires on pavment, but not quite as loud. There is also a strong vibration from a stop and light vibration under acceleration at cruising speeds.

From some of the other things I read, it might be the "driveshaft center bearing" but I will not be able to climb under my car until my back is better, or I get more Meds

What are some other things that could be wrong?
I was also thinking the diff. might be on its way out, but how common is that with a 150k sc300?
damnDSM is offline   Reply With Quote
Old 03-09-08, 03:25 AM   #5
LEXpert
Pole Position
Garage is empty, add now
Trader Score: (0)
 
Join Date: Jun 2004
Location: Canada
Posts: 293
Default

check the transmission mount on the tail shaft.

the earlier mounts have a metal "table" to support the trans if the mount wears out completely. if the transmission is resting on that table, you'll hear all sorts of noise.

speaking from experience on an SC4, but hey, it's an easy thing to check, and so much the better if that's the problem

slide underneath, and take a look at the mount, and push up on the tail of the transmission, and see if it moves.
LEXpert is offline   Reply With Quote
Old 03-09-08, 03:25 AM
 
 
 
 
Reply

Tags
ls400, mount, noise, sc300, sc400, sound, transmission, whirling, whirring, whirrling

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 07:47 AM.


Copyright © 2000-2008 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Service | JOBS


Get all contact info

Content Relevant URLs by vBSEO 3.5.2