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Discussion Starter #1
Hi All,
My 2008 9-3 TTiD seems a bit gutless on take off.
Its been a while since I have been on here because errr nothing has gone amiss or required fixing.

However, lately I have noticed a definite lack of get up and go from take off.
For example when pulling out of a junction sharpish (due to oncoming traffic) there is a definite lack of urgency until the larger Turbo kicks in.
For general pootling about in traffic there is no problem.. But when you need the power then its lacking.
I would also say that the power available from say 40 mph using kickdown is less than it used to be.

There are no warning lights or any other indication that something is amiss.

The car starts perfectly and runs very well indeed in all other respects

I read somewhere about WD40 and turbo actuators.. Where are these located and what do I spray?

Thanks in anticipation
 

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I used to have a similar problem with turbo lag on take off from stops or pulling out off roundabouts. I had a non performance remap which sorted the problem.
 

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Welcome back sspeed . I would start looking at vacuum lines , from the boost control valves down to the turbos
Also the boost control valves them selfs
With thease twin turbo units there should be no lag
If you are ofay with spanners then you could swapp the valves over , they sit on top behind the radiator with a multi plug and 2 vacuum lines comming off them , they are both the same part number so. Swapping them over is easy , but take a note on which position the vacuum lines are In .
Dose the turbo needle still move as it did before this happened ?
You see it could also be the auto box playing silly burgers , but that's just clutching at things .
If no good with spanners then go to a good mechanic that understands the twin turbo set up .
I know what thread you have read but in the end his fault was cured by changing the boost control valves.
 

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Discussion Starter #4
Hi Mr Lizzard..

The boost needle works as it always has and is responsive to inputs from my right foot (even small ones)..
I am good with spanners but would need to read up an accurate description of what to swap (ideally pictures)..

If it comes to it I can resort to the local (ish) Saab specialist in Kirkham which is about 15 miles from me.

Once again thanks for your input.

Simon
 

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No one has mentioned the actuators?! Apparently the small turbo actuator (accessible from under the car) is quite common to go stiff/seize. I took mine off today as it was stuck solid almost. I have freed it up a bit using wd40, but it is definitely stiffer than the one on the large turbo.

Is this normal? I think it?s made a bit of a difference, but it?s not night and day. Which i what I was hoping for.
 

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Old thread I know but did you get to the bottom of this issue?
Don't think we ever got to the bottom of the issue .on this thread .
But if you have a similar issue then start a new thread . So to save any confusion in symptoms . As not all are the same .

Sent from my TA-1024 using Tapatalk
 
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