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PostPosted: Sat Aug 04, 2018 8:04 pm 
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Joined: Wed Aug 16, 2017 9:18 pm
Posts: 23
Car Model: Saab 9-5 aero estate
I’ve just bought my second 9-5 aero, this time an estate (both 02). It drives absolutely fine, and due to a few mods is certainly rapid. However when I park it on my drive it emits a strange whirring noise from the engine bay (drivers side). My drive isn’t flat, you have to go over a kerb, slightly up on the pavement, then there’s a small step down on to a flat area (used to be the front garden). My previous Saab coped fine but this one doesn’t like it. It does it whether going backwards or forwards onto the drive, but has no issue coming off the drive. Any suggestions would be greatly appreciated (other than keep my other Saab). Could it be clutch related? It has an uprated sachs clutch kit from Abbott’s


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PostPosted: Mon Aug 06, 2018 1:05 pm 
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Joined: Wed Aug 16, 2017 9:18 pm
Posts: 23
Car Model: Saab 9-5 aero estate
Could the uneven ground be disrupting the lsd


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PostPosted: Mon Aug 06, 2018 1:43 pm 
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UKS Encyclopædia G-M
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Joined: Sun Aug 15, 2004 9:39 am
Posts: 39704
Location: SW Herts
Car Model: 9-5 Aero est. 9-3 Carlsson
You have an LSD?

I suspect that it's more likely to be a pulley on the drive belt. A slight twist of the body may be causing some flex allowing something to touch,or move out of line.

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PostPosted: Mon Aug 06, 2018 8:19 pm 
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UKSaabs Trader

Joined: Tue Aug 06, 2013 4:26 pm
Posts: 818
Car Model: 9-5 Aero (2002, manual, saloon
Will, this is the stage 3 9-5 wagon I sold him.

Quaiffe LSD, Sachs clutch and Abbott flywheel, if that helps get to the bottom of it.


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PostPosted: Mon Aug 06, 2018 9:10 pm 
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Full Pressure Turbo

Joined: Fri Mar 09, 2018 9:53 am
Posts: 902
Car Model: .
does it do it when using it on a flat surface ? going in reverse ?


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PostPosted: Mon Aug 06, 2018 9:59 pm 
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Joined: Wed Aug 16, 2017 9:18 pm
Posts: 23
Car Model: Saab 9-5 aero estate
Absolutely fine on a flat surface, uphill and downhill forwards or reverse


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PostPosted: Mon Aug 06, 2018 10:20 pm 
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Full Pressure Turbo

Joined: Fri Mar 09, 2018 9:53 am
Posts: 902
Car Model: .
And nothing catching on the surface under the car


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PostPosted: Wed Aug 08, 2018 6:27 am 
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Joined: Fri Apr 28, 2017 5:46 am
Posts: 8
Car Model: 9-5 Aero HOT estate
You say it’s an engine whirring noise, from which I assume that the whirring noise rises and falls with engine revs. The fact that it is exacerbated by a slope makes me think it could be low power steering fluid. That can give a whirring, moaning sound.

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PostPosted: Sun Sep 16, 2018 2:18 pm 
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Joined: Wed Aug 16, 2017 9:18 pm
Posts: 23
Car Model: Saab 9-5 aero estate
https://youtu.be/RK9JctxnXjE
I’ve finally managed to record the noise


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PostPosted: Mon Sep 17, 2018 11:04 pm 
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Full Pressure Turbo

Joined: Fri Mar 09, 2018 9:53 am
Posts: 902
Car Model: .
take the belt off and see if it still does it


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PostPosted: Tue Sep 18, 2018 8:51 pm 
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Joined: Wed Aug 16, 2017 9:18 pm
Posts: 23
Car Model: Saab 9-5 aero estate
A local garage had a look today and believe it to be the clutch. It’s a Sachs performance clutch (more abrasive than a standard one to handle more torque), which is fairly new (just over 1000miles), and the gap between it and the lightened flywheel would be less than a normal clutch, therefore when riding the clutch to drive up over a kerb, the friction would be more so, therefore creating the noise and emitting a burning smell


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