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PostPosted: Mon Aug 20, 2018 6:13 am 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Good morning collective,the wife's 2.2tid auto of 2003 age has a problem again..
Sometimes ,not all the time as you press the go pedal at low revs there is a faint fluttering sound and you can feel the car holding back stuttering slightly..best way to describe the noise is ,wave your hand in front of your mouth up and down while blowing out,,hand horizontal as if your trying to put your fingers in your mouth sideways..(I used to do this as a kid to make a helicopter sound)..wonder how many of you have just tried that lol,,my thoughts were first a collapsing pipe then the intake flaps clogged. Now I'm edging towards turbo on its way out..ie spinning at low revs and catching the sides ie worn shaft bearings..not had time to look yet any other ideas many thanks ..right off to work again only got in at 2.15 am from work ,tired is not the word


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PostPosted: Sun Aug 26, 2018 8:18 pm 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Any ideas ??


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PostPosted: Sun Aug 26, 2018 9:12 pm 
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Full Pressure Turbo
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Joined: Fri Mar 09, 2018 9:53 am
Posts: 799
Location: North Cambridgeshire
Car Model: 9-5 p/white 9-5 s/grey
possibly the wastegate actuator on the blink. have you checked the turbo for play in the shaft yet ?

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PostPosted: Mon Aug 27, 2018 11:14 am 
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Full Pressure Turbo
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Joined: Fri Mar 09, 2018 9:53 am
Posts: 799
Location: North Cambridgeshire
Car Model: 9-5 p/white 9-5 s/grey
the reason i said the actuator is because i too was getting the fluttering noise and a bit of lag as well when i booted it, after fitting a new actuator the problem disappeared...

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PostPosted: Sat Sep 01, 2018 1:26 pm 
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Joined: Sat Feb 24, 2018 1:29 pm
Posts: 10
Car Model: 2009 93 Convertible 150 Diesel
Don’t know if this is applicable or not but I had a similar fluttering issues with an 04 TDCI Mondeo which turned out to be a split EGR rubber pipe. The fluttering was caused by the boost pressure building and opening the split, pressure dropped and the split closed again. Repeat many time per minute and it gave the fluttering.


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PostPosted: Sat Sep 01, 2018 3:12 pm 
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Full Pressure Turbo

Joined: Sat Feb 28, 2015 8:03 am
Posts: 929
Location: North Norfolk
Car Model: 9-5 Linear Sport Estate Auto
Sounds a bit like the problem I had with my 2.2 auto which turned out to be swirl flaps sticking.

We found it on mine by opening the bonnet and someone watching (from the side), putting the car in gear with handbrake and footbrake hard on and bringing the revs up to where it happened.

If it is the same problem you will find the intake side convoluted pipe to the turbo ‘sucking and blowing’ in and out (its the only way I can describe it).

Sorted mine by working the actuator for the swirl flaps back and forward to free them up, six to eight months and 8k miles later all is still well.

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PostPosted: Tue Sep 04, 2018 6:04 am 
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Full Pressure Turbo

Joined: Sat Feb 28, 2015 8:03 am
Posts: 929
Location: North Norfolk
Car Model: 9-5 Linear Sport Estate Auto
Hey dieselderv have you sorted this?

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PostPosted: Tue Sep 04, 2018 11:25 am 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Hi sorry I just came back from a week working away so not had a chance yet ,,but the wife says it's getting worst


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PostPosted: Tue Sep 04, 2018 6:34 pm 
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Light Pressure Turbo

Joined: Fri Apr 19, 2013 12:18 pm
Posts: 347
Car Model: 9-5 2.2 vector estate
The fluttering is the boosted air going back through the turbo blades, my manual does it too. Many people with petrol turbos remove the dump valve to get this effect, think rally car at full chat then lifting off the throttle. Occasionally known as wastegate flutter/chatter( nothing to do with the wastegate fluttering tho) nothing to panic over.

https://youtu.be/m46kLpPkfJQ


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PostPosted: Tue Sep 04, 2018 8:03 pm 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
No it's definatly not that it's as you pull away not changing gear and its auto


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PostPosted: Tue Sep 04, 2018 8:03 pm 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Also the fact that it hesitates slightly when fluttering


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PostPosted: Tue Sep 04, 2018 9:52 pm 
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Full Pressure Turbo
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Joined: Fri Mar 09, 2018 9:53 am
Posts: 799
Location: North Cambridgeshire
Car Model: 9-5 p/white 9-5 s/grey
pwoods wrote:
The fluttering is the boosted air going back through the turbo blades, my manual does it too. Many people with petrol turbos remove the dump valve to get this effect, think rally car at full chat then lifting off the throttle. Occasionally known as wastegate flutter/chatter( nothing to do with the wastegate fluttering tho) nothing to panic over.

https://youtu.be/m46kLpPkfJQ


well its definitely not that sound

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PostPosted: Sun Sep 09, 2018 4:07 pm 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Right got some time to have a look ..minimal play in turbo no split pipes flaps not sticking ..there is a lot of oil coming out from the vacuum thingy on the right hand side top of engine .. Goes to brake servo ..when the flap rod and the egr rod are moved there is a farting sound coming from the plastic parts where al the silicone pipes go to


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PostPosted: Sun Sep 09, 2018 4:43 pm 
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Full Pressure Turbo
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Joined: Fri Mar 09, 2018 9:53 am
Posts: 799
Location: North Cambridgeshire
Car Model: 9-5 p/white 9-5 s/grey
take a photo of where its farting...

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PostPosted: Sun Sep 09, 2018 5:11 pm 
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Joined: Thu Feb 14, 2008 10:47 am
Posts: 6105
Location: Queenborough, Kent
Car Model: 9k, 9-5 Aero & a Jaaag
sounds like it's a vacuum pump/reservoir and there's a leak somewhere ...

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PostPosted: Mon Sep 10, 2018 6:15 am 
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Full Pressure Turbo
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Joined: Fri Mar 09, 2018 9:53 am
Posts: 799
Location: North Cambridgeshire
Car Model: 9-5 p/white 9-5 s/grey
would be a good idea to pressure test the vacuum boxes on the swirl flap arm and throttle body butterfly and then check the boost solenoids, only use gm solenoids, they will have GM and part/no in raised lettering on them, as the pattern shiny black ones are a total waste of hard earned money. the leak from the vacuum pump can be easily sorted by unbolting the pump and lifting out the black rubber gasket/seal , putting a thin bead of instant gasket or sump sealant in the recess and pop the seal back in, let it cure then bolt it back on, ive tried getting the seals and have had no luck anywhere, i did this fix on my 2.2 and touchwood, 29k later its fine, no leaks. part numbers for solenoids are 9128022, 9158200, 9189002 and the vacuum boxes are 5333950. i think bill has got or can get the lot, cheaper than a vauxhall dealer by a mile :)

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PostPosted: Mon Sep 10, 2018 8:18 am 
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Active user

Joined: Thu Jul 07, 2016 1:21 pm
Posts: 146
Car Model: 04 9-5 Vector sport 2.2TID est
It's your swirl flaps I have the same problem on my wifes 2.2 so unplugged it & left it unplugged & never had it again, the only issue is that your EML light is always on while unplugged, but I just plug it back in for the MOT to put the light out then after just unplug it again


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PostPosted: Sun Sep 16, 2018 7:45 am 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Sorry for the late reply I do appreciate all the answers..today is the day I'm off to disconnect the swirl flap pipe now ..bare with me


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PostPosted: Sun Sep 16, 2018 8:12 am 
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Saab Nut

Joined: Thu Aug 25, 2011 5:18 pm
Posts: 1164
Car Model: saab 95
Right removed the pipe for the swirl flaps noise and hesitation gone..thanks kenmac..I haven't driven it for a while (I drive a v70 d5 now) ,but it does seem slower and less responsive than it was and extremely noisey ..maybe me though...removing that pipe hasn't put the eml on though


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PostPosted: Sun Sep 16, 2018 8:22 am 
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Full Pressure Turbo
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Joined: Fri Mar 09, 2018 9:53 am
Posts: 799
Location: North Cambridgeshire
Car Model: 9-5 p/white 9-5 s/grey
happy days, always good to hear the outcome :)

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