« previous next »
Pages: 1 2 [3]

Author Topic: Help - loud rattly whine from top of engine area  (Read 66024 times)

sgould

  • Aerobic
  • SST paid up supporter
  • Overboost
  • *
  • Posts: 5912
  • Number of thanks: 346
  • 2006 9-5 Aero estate - Hirsched.
    • View Profile
    • Christine Bennett - soprano
Re: Help - loud rattly whine from top of engine area
« Reply #30 on: 05 September 2025, 08:57:05 PM »
The leak may only run when pressurised, and that will only happen when the pump is turning.
Logged
Help support SaabTechTalk by making a Lump Sum donation or by opening a subscription. 
Options available are in your Profile/Actions.

carrera

  • SaabTechTalk-Team
  • Test pilot
  • *
  • Posts: 1472
  • Number of thanks: 24
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #31 on: 05 September 2025, 11:19:59 PM »
The pressure in the system is I believe highest when on full lock as well

At least that's the case on the NG9-5
Logged
9-5 Aero Estates, 2002 Cosmic Blue, 2003 Steel Grey, 2003 Graphite Green, 2004 9-5 Glacier Blue 2.0 saloon, 2004 Nocturne Blue 2.2 diesel estate, 2006 & 2008 Black Aero saloons, 1998 9000 CSE with Aero engine, 9-5 NG Aero XWD Turbo4, 9-5 NG Aero XWD TTiD, 9-5 NG Aero 2WD Turbo4

TomPaine

  • SST paid up supporter
  • Aero
  • *
  • Posts: 550
  • Number of thanks: 17
  • MY04 9-5 Aero auto estate
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #32 on: 07 September 2025, 09:44:35 AM »
Clear diagnosis now - leak. The level was constant with the car unused, but yesterday morning I filled it to the half-way point and did a c20-mile round trip. Car was fine, no ominous noises. Popped cardboard under the engine on return. Checked this morning and there's a small puddle of green fluid underneath, reservoir is down. So as we suspected all along the French garage addressed symptom and not cause and replaced the PAS pump without spotting the leak. Very frustrating.
Logged

carrera

  • SaabTechTalk-Team
  • Test pilot
  • *
  • Posts: 1472
  • Number of thanks: 24
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #33 on: 07 September 2025, 12:46:33 PM »
Yes, very frustrating

Where's the leak from - front of the car, near the centre, about where the radator is ?
Logged
9-5 Aero Estates, 2002 Cosmic Blue, 2003 Steel Grey, 2003 Graphite Green, 2004 9-5 Glacier Blue 2.0 saloon, 2004 Nocturne Blue 2.2 diesel estate, 2006 & 2008 Black Aero saloons, 1998 9000 CSE with Aero engine, 9-5 NG Aero XWD Turbo4, 9-5 NG Aero XWD TTiD, 9-5 NG Aero 2WD Turbo4

TomPaine

  • SST paid up supporter
  • Aero
  • *
  • Posts: 550
  • Number of thanks: 17
  • MY04 9-5 Aero auto estate
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #34 on: 07 September 2025, 01:07:47 PM »
On the basis of the cardboard underneath (and not any close scrutiny on my part) I would say - yes exactly!
Logged

sgould

  • Aerobic
  • SST paid up supporter
  • Overboost
  • *
  • Posts: 5912
  • Number of thanks: 346
  • 2006 9-5 Aero estate - Hirsched.
    • View Profile
    • Christine Bennett - soprano
Re: Help - loud rattly whine from top of engine area
« Reply #35 on: 07 September 2025, 02:18:32 PM »
When the bumper is off, this is the cooling loop of the power steering system.  I took the photo after I painted it in rust killer.  It's also a bit loose with no fixings at the time.  Unfortunately the pipe is all in one piece between back under and behind the engine, including the flexy bits.
Logged
Help support SaabTechTalk by making a Lump Sum donation or by opening a subscription. 
Options available are in your Profile/Actions.

carrera

  • SaabTechTalk-Team
  • Test pilot
  • *
  • Posts: 1472
  • Number of thanks: 24
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #36 on: 07 September 2025, 05:55:40 PM »
It's a bit of a fiddly job.

NeoBrothers was the source for my replacement on the DE, if you are sourcing your own parts
Logged
9-5 Aero Estates, 2002 Cosmic Blue, 2003 Steel Grey, 2003 Graphite Green, 2004 9-5 Glacier Blue 2.0 saloon, 2004 Nocturne Blue 2.2 diesel estate, 2006 & 2008 Black Aero saloons, 1998 9000 CSE with Aero engine, 9-5 NG Aero XWD Turbo4, 9-5 NG Aero XWD TTiD, 9-5 NG Aero 2WD Turbo4

sgould

  • Aerobic
  • SST paid up supporter
  • Overboost
  • *
  • Posts: 5912
  • Number of thanks: 346
  • 2006 9-5 Aero estate - Hirsched.
    • View Profile
    • Christine Bennett - soprano
Re: Help - loud rattly whine from top of engine area
« Reply #37 on: 08 September 2025, 02:12:30 PM »
If it's a slowish leak, an extra bottle of CHF should get you to Welwyn.
Logged
Help support SaabTechTalk by making a Lump Sum donation or by opening a subscription. 
Options available are in your Profile/Actions.

TomPaine

  • SST paid up supporter
  • Aero
  • *
  • Posts: 550
  • Number of thanks: 17
  • MY04 9-5 Aero auto estate
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #38 on: 08 September 2025, 04:36:13 PM »
It was a slowish leak - but alas my test run on Saturday seems to have significantly aggravated it. The cardboard underneath is soaked through and having replaced that this morning it's still dripping constantly. And whereas the reservoir held a few cms before it's now empty. So I fear that the top-up and leg-it strategy maybe too risky. Aaaaaaaaagh.
Logged

TomPaine

  • SST paid up supporter
  • Aero
  • *
  • Posts: 550
  • Number of thanks: 17
  • MY04 9-5 Aero auto estate
    • View Profile
Re: Help - loud rattly whine from top of engine area
« Reply #39 on: 11 September 2025, 05:02:00 PM »
Car went off on a recovery truck this morning. For the second time in three weeks ...

I'll update.
Logged
Pages: 1 2 [3]
« previous next »