Notices
996 Turbo Forum 1999-2005
Sponsored by:
Sponsored by:

Need help with disgnosing a sound

Thread Tools
 
Search this Thread
 
Old 05-16-2023, 11:20 AM
  #1  
misterted
Rennlist Member
Thread Starter
 
misterted's Avatar
 
Join Date: Jul 2017
Location: Jersey Shore
Posts: 234
Received 20 Likes on 15 Posts
Default Need help with disgnosing a sound

When I drove locally around town I get a high pitched squeal coming from what sounds like the engine compartment over my right ear.
Car must be at temperature.
Only happens once I'm driving and going through the gears
When I stop at a light the sound remains consistent until I depress the clutch, that makes it stop immediately. Nothing else makes it stop.
It's not so high pitched like a loose fan belt squeal,
It doesn't happen consistently but does happen more often than not.

Hope someone has had this experience and can point me in the right direction.


Thank You.

.
Old 05-16-2023, 01:13 PM
  #2  
2fcknfst
RL Community Team
Rennlist Member
 
2fcknfst's Avatar
 
Join Date: Mar 2018
Location: Vancouver
Posts: 17,762
Likes: 0
Received 3,879 Likes on 2,953 Posts
Default

Throw out bearing on the clutch perhaps?
Old 05-16-2023, 06:20 PM
  #3  
Lazurus
Racer
 
Lazurus's Avatar
 
Join Date: May 2023
Posts: 378
Likes: 0
Received 72 Likes on 61 Posts
Default

Hi,

I am "new" here but not new to Porsche.Your problem is a long known issue described by Porsche in TSB 4897. The "valve" in your power steering reservoir is oscillating and creating the "whine" described as being reminiscent of a "tea kettle whistle". Replace the steering reservoir and the issue will be gone. "Most" long time early owners have long since dealt with this issue. Or else live with it and as you say "depress the clutch" to mitigate the noise.

It only happens when engine temperatures are high.


The following users liked this post:
Carlo_Carrera (05-16-2023)
Old 05-16-2023, 06:37 PM
  #4  
wross996tt
Race Car
 
wross996tt's Avatar
 
Join Date: Feb 2005
Posts: 4,854
Received 82 Likes on 61 Posts
Default

Yep, power steering reservoir.
Old 05-16-2023, 07:13 PM
  #5  
misterted
Rennlist Member
Thread Starter
 
misterted's Avatar
 
Join Date: Jul 2017
Location: Jersey Shore
Posts: 234
Received 20 Likes on 15 Posts
Default

Originally Posted by Lazurus
Hi,

I am "new" here but not new to Porsche.Your problem is a long known issue described by Porsche in TSB 4897. The "valve" in your power steering reservoir is oscillating and creating the "whine" described as being reminiscent of a "tea kettle whistle". Replace the steering reservoir and the issue will be gone. "Most" long time early owners have long since dealt with this issue. Or else live with it and as you say "depress the clutch" to mitigate the noise.

It only happens when engine temperatures are high.
God I love these forums, I was racking my brain with this.

Thank you.
Old 05-16-2023, 07:15 PM
  #6  
misterted
Rennlist Member
Thread Starter
 
misterted's Avatar
 
Join Date: Jul 2017
Location: Jersey Shore
Posts: 234
Received 20 Likes on 15 Posts
Default

Originally Posted by Lazurus
Hi,

I am "new" here but not new to Porsche.Your problem is a long known issue described by Porsche in TSB 4897. The "valve" in your power steering reservoir is oscillating and creating the "whine" described as being reminiscent of a "tea kettle whistle". Replace the steering reservoir and the issue will be gone. "Most" long time early owners have long since dealt with this issue. Or else live with it and as you say "depress the clutch" to mitigate the noise.

It only happens when engine temperatures are high.
Would you happen to know how many hours of labor this would fall under?

Thanks again.
Old 05-16-2023, 07:50 PM
  #7  
Lazurus
Racer
 
Lazurus's Avatar
 
Join Date: May 2023
Posts: 378
Likes: 0
Received 72 Likes on 61 Posts
Default

Originally Posted by misterted
Would you happen to know how many hours of labor this would fall under?

Thanks again.
I'm sorry as I can't recall labor hours as my replacement of it was covered under the original factory warranty. Thanks to the Porsche service bulletin.

But you are welcome, and I can assure you that this indeed is your issue.
Old 05-16-2023, 08:28 PM
  #8  
TexSquirrel
RL Community Team
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, TX
Posts: 5,262
Received 2,389 Likes on 1,266 Posts
Default

Originally Posted by misterted
Would you happen to know how many hours of labor this would fall under?
7.9 hours
Old 05-16-2023, 09:04 PM
  #9  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,788
Received 2,293 Likes on 1,463 Posts
Default

Originally Posted by TexSquirrel
7.9 hours
LOL, no it's just a couple of hours.

I believe someone here just recently fixed this by replaced the just the top portion of the pump which the noisy valve is a part of. That made the fix super quick.
Old 05-16-2023, 09:26 PM
  #10  
TexSquirrel
RL Community Team
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, TX
Posts: 5,262
Received 2,389 Likes on 1,266 Posts
Default

Originally Posted by Carlo_Carrera
LOL, no it's just a couple of hours.

I believe someone here just recently fixed this by replaced the just the top portion of the pump which the noisy valve is a part of. That made the fix super quick.
7.9 hours is the book time for R&R the power steering pump.
Old 05-16-2023, 09:37 PM
  #11  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,788
Received 2,293 Likes on 1,463 Posts
Default

Originally Posted by TexSquirrel
7.9 hours is the book time for R&R the power steering pump.
That maybe what the book says but it doesn't take anywhere near that amount of time. The pump it right on the top of the engine.
Old 05-16-2023, 10:08 PM
  #12  
TexSquirrel
RL Community Team
Rennlist Member
 
TexSquirrel's Avatar
 
Join Date: Aug 2016
Location: Richmond, TX
Posts: 5,262
Received 2,389 Likes on 1,266 Posts
Default

Yeah, book time is often higher than actual time.
As a flat rate mechanic, that’s what you hope for.
Expect to pay book time if you take it somewhere.
Expect it to take book time the first time or two that you do it.
Old 05-16-2023, 10:42 PM
  #13  
Carlo_Carrera
RL Community Team
Rennlist Member
 
Carlo_Carrera's Avatar
 
Join Date: Feb 2010
Location: Nearby
Posts: 10,788
Received 2,293 Likes on 1,463 Posts
Default

Originally Posted by TexSquirrel
..Expect it to take book time the first time or two that you do it.
Nah. A couple of hours. Less if you just replace the top portion.

https://rennlist.com/forums/996-turb...servoir-2.html

Last edited by Carlo_Carrera; 05-16-2023 at 10:49 PM.
Old 05-18-2023, 10:53 AM
  #14  
misterted
Rennlist Member
Thread Starter
 
misterted's Avatar
 
Join Date: Jul 2017
Location: Jersey Shore
Posts: 234
Received 20 Likes on 15 Posts
Default

Originally Posted by Carlo_Carrera
Nah. A couple of hours. Less if you just replace the top portion.

https://rennlist.com/forums/996-turb...servoir-2.html

This is very helpful, thank you.
Old 05-26-2023, 04:10 PM
  #15  
Yogibara
Rennlist Member
 
Yogibara's Avatar
 
Join Date: Feb 2021
Location: Satan's Armpit, aka Houston, TX
Posts: 761
Received 573 Likes on 245 Posts
Default

Do it yourself. It's not hard. My TT has a 997 PS reservoir to address this issue. While I don't personally have a video on this topic, I've found many that discuss this top on YT. Good luck!


Quick Reply: Need help with disgnosing a sound



All times are GMT -3. The time now is 12:24 AM.