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Old 03-29-2006, 07:44 PM   #1
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Blueish/Grey Smoke on Acceleration

Ok so today I goto work in the morning and everything seems just fine nothing out of the ordinary. I goto lunch and still nothing weird or odd. Then I jump in the car at 5 to go home and take off out of the parking lot. Get to a stop light about 600 feet away and am greeted by a nice cloud of blueish/gray smoke drifting up from the rear of the car. I thought well it must be the beat down Ford Taurus behind me and pass it off as nothing. So I take off and make my left turn and notice as boost builds the smoke starts...let off and drop boost and no smoke.


So I pull over and get out to see if I am smoking at idle or under throttle blips and no smoke so I decide to take off and head home (2 miles away). I take off and give it 3/4 throttle and less smoke (but still some) so I let off and keep the boost at 0 psi and no more smoke. By the time I got home it wasnt smoking anymore that I could tell so I park and go inside.

Fast forward 2 hours and I come out to go somewhere jump in the SAAB and take off (motor is still warmed up some). Give it full throttle and nice burst of blueish smoke and for every throttle push after that the smoke calmed down to only a small puffs at hard acceleration.

So long story but had to explain it all...now I need everyone to confirm what I think and that is that my poor Td04 is dyeing.....
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Old 03-29-2006, 07:47 PM   #2
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Keep an eye on your coolant levels for the next couple of days - if its not your turbo it could be that your mixing coolant and oil, though coolant burning off is usually white smoke, I guess depending on your coolant it could be that - in which case you probably need a new headgasket.

Either way, smoke is no good.

**Though there is an up-side, the way I look at things like this is that there just an excuse to go bigger/better
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Old 03-29-2006, 07:58 PM   #3
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sucks man. But like cooper just said. Time to go bigger!
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Old 03-29-2006, 08:04 PM   #4
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Agreed, could be the Head gasket or the turbo. Keep an eye on the coolant and oil, and be sure to note any oil in the coolant or any coolant in the oil. It will look like a brown nasty mix. Obviously either one is a bad thing... If you notice nothing but loss of oil, I would suspect the turbo.
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Old 03-29-2006, 08:36 PM   #5
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Thanks for the replys..So far the oil is clean and the coolant is still perfect. An old trick I was taught about oil in the coolant is to stick a screw driver in the tank and stir it up and if it foams then there is oil in it. This has always been true with every old V-8 I had with blown gaskets but not sure with synthetic oils. I will have to keep an eye on those fluids and see what happens.
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Old 03-29-2006, 08:45 PM   #6
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yeah, foam in the oil is a sure sign of coolant in the oil. oil has anti foaming agents in it, so if you are getting much foam in the oil it's generally because there is coolant in it.
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Old 03-29-2006, 09:07 PM   #7
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well so far i am in luck...no foam on either side of the house. I am really leaning towards the turbo has gone south.
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Old 03-29-2006, 09:23 PM   #8
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yeah your blowing oil out your turbi the seals are gone...almost positive on this one
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Old 03-30-2006, 12:41 PM   #9
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Yeah I found a rebuild kit for the TD04 for $99 but I am waiting to make sure it is fully compatabile with the SAAB version of the TD04. The kit is essentially a new seal set, snap rings and gaskets. I need to get a look at the wheels to see what kind of play I have inthe center section before I commit to buying anything.
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Old 03-30-2006, 12:46 PM   #10
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yep... sounds like turbo. does it ever give out a little smoke after the car has been shut off for a while and you go to start it?...
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Old 03-30-2006, 12:48 PM   #11
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No it has all been under full boost conditions only. If I dont give it throttle it dont smoke.
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Old 03-30-2006, 01:19 PM   #12
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this is exactly what just happend to me turbo is all gone... give it a bit and it will look like u have a steem powered saab.

keep in mind youll probly need new oil lines for a TD04 no matter if its a saab compatable or not atleast thats how it is on my 9k
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Old 03-30-2006, 05:45 PM   #13
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just remember that in our cars, when you floor it, the ECU dumps a lot a fuel into the engine, jumping on it really hard will make a little smoke, not a whole lot, but noticable sometimes. I noticed this last year and took my car to my mech. and thats what he told me
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Old 03-30-2006, 07:38 PM   #14
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No this was enough to engulf my car when I pulled up at a light and more than a puff or 2 at some lights.
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Old 03-31-2006, 04:48 AM   #15
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turbo seals more than likley
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Old 03-31-2006, 06:52 AM   #16
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Yeah I was looking at it again last night and it looks like I have some oil on the mount plates connecting the center section and exhaust housing. Time to pull it off and rebuild it.
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