The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 06-10-2005, 05:57 PM
svxthc's Avatar
svxthc svxthc is offline
Registered User
 
Join Date: Aug 2004
Location: Long Beach, CA
Posts: 477
Rear Grinding Noise on Takeoff

It seems after I start the car and accelerate there is this click/grinding sound coming from the rear lower end, almost sounding like the exhaust is making the noise. I let the car warm up for roughly a minute and I still get this abbreviated sound coming from the back of the car for the first quarter mile of the ride whenever I move from a stop. Any ideas what this could be? It's nothing major and it only happens it seems before the car has warmed up. I was just wondering if any of you had experienced anything similar in your svx!
__________________
1993 SVX Anniversary Edition #64
Reply With Quote
  #2  
Old 06-10-2005, 07:04 PM
NikFu S.'s Avatar
NikFu S. NikFu S. is offline
Takin tools to task
 
Join Date: May 2003
Location: A-town, Alaska
Posts: 7,280
Send a message via MSN to NikFu S.
Registered SVX
Could be the differential.
__________________
"That which can be asserted without evidence
can be dismissed without evidence."


'92 Dark Teal SVX LS-L, >146,000m
3 pedals, 5 speeds., restoration underway.
2012 Honda Insight, slow but cute.
Reply With Quote
  #3  
Old 06-11-2005, 04:20 PM
Earthworm's Avatar
Earthworm Earthworm is offline
Meow!
 
Join Date: Mar 2002
Location: Winnipeg, Manitoba
Posts: 11,957
Send a message via ICQ to Earthworm Send a message via AIM to Earthworm Send a message via MSN to Earthworm Send a message via Yahoo to Earthworm Send a message via Skype™ to Earthworm
Are you sure it's not the exhaust?
Reply With Quote
  #4  
Old 06-11-2005, 04:40 PM
NikFu S.'s Avatar
NikFu S. NikFu S. is offline
Takin tools to task
 
Join Date: May 2003
Location: A-town, Alaska
Posts: 7,280
Send a message via MSN to NikFu S.
Registered SVX
Quote:
Originally Posted by Earthworm
Are you sure it's not the exhaust?
One way to find out is to rev the engine a little in park while it's cold. If it is the exhaust it won't matter whether it's moving or not. If it's a drivetrain component chances are it won't make the noise parked.
__________________
"That which can be asserted without evidence
can be dismissed without evidence."


'92 Dark Teal SVX LS-L, >146,000m
3 pedals, 5 speeds., restoration underway.
2012 Honda Insight, slow but cute.
Reply With Quote
  #5  
Old 06-11-2005, 06:49 PM
svxthc's Avatar
svxthc svxthc is offline
Registered User
 
Join Date: Aug 2004
Location: Long Beach, CA
Posts: 477
Like a dummy I revved it in park like 5 seconds after starting it up before it had the chance to heat up and it started smoking out of the exhaust, not doing that again.
__________________
1993 SVX Anniversary Edition #64
Reply With Quote
  #6  
Old 06-11-2005, 07:02 PM
NikFu S.'s Avatar
NikFu S. NikFu S. is offline
Takin tools to task
 
Join Date: May 2003
Location: A-town, Alaska
Posts: 7,280
Send a message via MSN to NikFu S.
Registered SVX
Quote:
Originally Posted by svxthc
Like a dummy I revved it in park like 5 seconds after starting it up before it had the chance to heat up and it started smoking out of the exhaust, not doing that again.
How high did you go? Simulating actual driving would only require you going up to about 2-2.5k.
If you drive when it's cold like that it does the same thing...
Did you listen for the noise?
__________________
"That which can be asserted without evidence
can be dismissed without evidence."


'92 Dark Teal SVX LS-L, >146,000m
3 pedals, 5 speeds., restoration underway.
2012 Honda Insight, slow but cute.
Reply With Quote
  #7  
Old 06-13-2005, 09:34 AM
Earthworm's Avatar
Earthworm Earthworm is offline
Meow!
 
Join Date: Mar 2002
Location: Winnipeg, Manitoba
Posts: 11,957
Send a message via ICQ to Earthworm Send a message via AIM to Earthworm Send a message via MSN to Earthworm Send a message via Yahoo to Earthworm Send a message via Skype™ to Earthworm
Another way to test is to load up the drivetrain. Hold the brake, put it in D and bring the RPM up to 2k temporarily and listen for the noise. Don't hold it there for long as that creates tremendous heat in the tranny.
Reply With Quote
  #8  
Old 06-13-2005, 12:41 PM
ssnsltd's Avatar
ssnsltd ssnsltd is offline
That's gona leave a mark.
 
Join Date: Nov 2004
Location: Ft Bragg, NC
Posts: 271
If it is only on acceleration,
I would put my money on a U-joint some where in the prop shaft (driveshaft)

I just replaced mine. There is a big heat shield covering the front two joints, so you may not be able to see it.

You can sort of check it by putting the 10amp fuse in (under the hood center, driver side) in the 2wd spot. This will disengage the rear wheel drive.

http://www.subaruparts.com/diag/?mod...category=199-1
__________________
David
96LSi 102k Laguna Blue
95 LS-L AWD, Safety package, 140k Polo Green

the Chick Magnet:
91 Justy GL EFI 4x4 154k (new motor @120k)

90 Yamaha V-Max
82 Yamaha XJ650LJ Turbo
My Diver Propulsion vehicle:
88 Jeep Cherokee 160k
"U-sta-have"
88 XT6 AWD Pearl,
86 XT Lt Blue,
85 XT AWD/4x4 Turbo Space Blue
Reply With Quote
Reply

Thread Tools
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

Forum Jump


All times are GMT -6. The time now is 10:35 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122