I have 2000 Saab 9-3 B205r engine and start having problem with white smoke coming out from exhaust. I have a vacuum leak from the nipple of the vacuum pump. Did somebody else had the same problem. It`s not the head gasket because oil is fine. What could it be. Thank you very much
Well, white smoke either means condensation in the exhaust or water (antifreeze) from the cooling system through the head or turbo. If you're not loosing coolant, then it must be condensation. Blue smoke is from oil (either from a leaking turbo seal, valve stem seals or piston rings) and black smoke is from too much gas or too little air. I'd just keep an eye on the antifreeze for a week and forget about it if the level doesn't drop... Ron
Since the turbos are both lubed by engine oil and cooled with antifreeze, the white smoke could be from the turbo too. Did the smoke start before or after the turbo was changed?... Ron
If there was oil in the exhaust, you would have seen blue smoke. I was just wondering if the new turbo was leaking antifreeze. If you don't see the white smoke now, apparently the new turbo fixed it... Ron
Was it a brand new or rebuild turbo? Sometimes cheap parts are used for rebuilds; they are out of specs and made of bad materials you know where. If it was a rebuild unit, most likely it's a turbo.
The car start smoking after driving around 20 miles. In the morning I can race the car and nothing is smoking. After 20 miles in nice weather like this week. Start smoking white/blue smoke. I have a vacuum leak and maybe that`s the reason the bushing(nipple) on the vacuum leak has to be change. Any advice will be helpful. Thank you
The vacuum and its pump have nothing to do with this smoke. Monitor your fluid levels very closly. Did this shop know that the turbo was leaking, or are they just guessing? The condition of the turbo interior should yield a good clue.
Saab went over 40 years without needing a vacuum pump, why not bypass it for now??..Better yet, fix it..
A man should be happy with his vehicle, if not....
I just read online that if there is a vacuum leak and I have it. It can suck the automatic transmition oil and burn it. Is it possible? Why the smoke appear after driving 10-20 miles? Do you think it can be just simple as bushing of the vacuum pump and to burn transmission oil. Is there any vacuum line there. Thank you guys for your support.
Could also be the buildup of pressure in the cooling system as the engine warms up to full operating temp. Low temp = low pressure & less coolant through barrier. Typical of a head gasket leak as well.
Agree with GlassGrey... higher pressure in the system potentially could be the cause of accelerated coolant leak through the turbo. Plus, seals made of wrong materials expand differently with temperature than OEM parts. I have a feel this is your turbo.
I never heard of anything likle burning ATF... The tranny is a separate hydraulic system.
It`s like Grey smoke not exactly white, but I had the same problem before replacing the turbo. That means it`s not from the Turbo. Car loosing power and I can hear some kind of knocking and after that a lot of smoke. After five miles again back to normal the car is running fine. That is realy crazy but it`s happening. Thank you again for your time.
It`s like Grey smoke not exactly white, but I had the same problem before replacing the turbo. That means it`s not from the Turbo. Car loosing power and I can hear some kind of knocking and after that a lot of smoke. After five miles again back to normal the car is running fine. That is realy crazy but it`s happening. Thank you again for your time.
you cant un less the line to the turbo is bad. the coolant cools the center section thats it. knocking..... smoke... lost power sounds like you got maybe a fuel injector going bad and ur hitting detonation. or poor fuel. low octane fuel can cause knock which will make the knock sensor either advance or retard the ignition.... but one would think not enough to cause smoke. also. your engine oil can look fine and still have a head gasket issue. not always does the coolant mix with the oil. besides im not to fond of the t7 cars, they seem to be more cheaply built
Sounds like The same problem i have with my own 2000 9-3, heres what you do, disconnect the vacuum line from the brake power booster, then get something you can stick in there like a dipstick to check for oil (a small piece of multistrand wire works good). if you have oil in the booster your problem is the vacuum pumps one way valve has failed, and is allowing oil to enter the line between the pump, booster, and intake manifold. once the oil is in there, you come to a stop at a light, the vacuum from the engine at idle will pull in oil, once you start to accelerate, the oil is sucked into the cylinders once the turbo starts to boost. you will need to replace the vacuum pump. a pretty simple job with hand tools and if you have a vacuum leak it sounds like you may need the line that runs between the intake, booster, and pump. I bought my saab with the same symptoms already happening, and was told all it needed was a turbo, I replaced the turbo and WoW it does the exact same thing it did before. (I know I should have checked it out myself, but I trusted the experienced 25+ year tech who obviously was just guessing. it just goes to show you, if you want something done right do it yourself!). I looked on line for some dirrection to start my diagnosis and everyone seems to say either turbo or headgaskets. but my problem sounded exactly like all of your symptoms and it turned out to be the vacuum pump and it flooded the brake booster so I had to replace that too. hope this helps
Sounds like The same problem i have with my own 2000 9-3, heres what you do, disconnect the vacuum line from the brake power booster, then get something you can stick in there like a dipstick to check for oil (a small piece of multistrand wire works good). if you have oil in the booster your problem is the vacuum pumps one way valve has failed, and is allowing oil to enter the line between the pump, booster, and intake manifold. once the oil is in there, you come to a stop at a light, the vacuum from the engine at idle will pull in oil, once you start to accelerate, the oil is sucked into the cylinders once the turbo starts to boost. you will need to replace the vacuum pump. a pretty simple job with hand tools and if you have a vacuum leak it sounds like you may need the line that runs between the intake, booster, and pump. I bought my saab with the same symptoms already happening, and was told all it needed was a turbo, I replaced the turbo and WoW it does the exact same thing it did before. (I know I should have checked it out myself, but I trusted the experienced 25+ year tech who obviously was just guessing. it just goes to show you, if you want something done right do it yourself!). I looked on line for some dirrection to start my diagnosis and everyone seems to say either turbo or headgaskets. but my problem sounded exactly like all of your symptoms and it turned out to be the vacuum pump and it flooded the brake booster so I had to replace that too. hope this helps
I know this is an old thread but you saved me a lot of money! I had the same symptoms and left it with the mechanic all week. He drove it all around and could not see anything, but mentioned that there was a non-return valve missing between the throttle body and the booster. Well as soon as I neared home after stopping at the lights, clouds of smoke and clatter. This was after about 30km. He told me the turbo must be the fault.
This didn't make sense to me if the turbo was going there wouldnt be smoke under only such specific conditions. Thats when I realised that there are two non return valves missing from the vacuum to brake booster pipe. Why the hell they were removed I have no idea. I blocked off the pipe, tested up and down a deserted street and the brakes were working fine. (5pm all shops closed and I was in a dodgy neighbourhood after trying in vain to find a valve so wanted to get out of there) drove all the way home about 50 km without any smoke or symptoms. The clatter along with the smoke was oil being burnt in the cylinder causing detonation. I wanted to leave this here for any future unfortunate souls with the same problem.
It was exactly brake booster, but thank you for your reply. I found out after spending a lot of money changing twice the turbo. I had problems with the brakes, that's how I found out it was the brake booster was half full with oil. Probably from the leaking turbo. Thank you again
what's up saab family.. I just got a 02 saab 9-5 linear turbo with a oil and its blowing white smoke from the exhaust. I'm new to saab and i really wanna fix it up a bit, but i wanna fix the major problem. If anyone can help then im in your debt....
what's up saab family.. I just got a 02 saab 9-5 linear turbo with a oil and its blowing white smoke from the exhaust. I'm new to saab and i really wanna fix it up a bit, but i wanna fix the major problem. If anyone can help then im in your debt....
@Greg from Paris Pls don't bump 13yr old threads,serves no purpose..
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