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Burning white smoke 2006 Cayman S
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caunyd
New User
Dec 4, 2011, 2:51 PM
Post #1 of 2
(4853 views)
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Burning white smoke 2006 Cayman S
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2006 Porsche Cayman S
72,000 miles
Hi guys. As I was driving, all of a sudden A LOT of white smoke started coming out from my car. The smoke had a burning smell. The yellow engine light went on in the dash. So when this happened, I immediately stopped the car and had it towed. If I remember correctly, the oil or engine temperature was ok at that time. The car didn't lose power, and I was travelling about 30 mph at the time.
I have consistently changed the oil on this car, usually every 5-10,000 miles. The most recent oil change was 2,000 miles ago. According to the dash, I have adequate oil. So is this an oil problem? What I have noticed is that for over 1 1/2 years, there was a burning smell, probably from the rear vents, after I drove and then parked the car, but everything worked perfectly.
Since that time, based on message board information, I have been told that the most likely problem is a bad air oil separator (AOS). So I ordered a factory AOS, and tried to replace it myself. Although it's a seemingly simple job, I didn't have the tools. So while I took out the AOS, I was not able to put in a new one. So from this point on, I did not turn on the engine, and had it towed to the mechanic.
While my car was being towed to the mechanic, I noticed an oil leak on the left side of my car. I think the oil leak was because the bad AOS allowed too much oil to get into the cylinder/piston. So I replaced the air oil separator. But after I replaced the AOS, I tried to start the engine, but it wouldn't start. It just made a "click" sound. At first I thought it was a battery problem, but then I charged and then jumped started the car, but it still wouldn't start.
My thinking was that perhaps too much oil went into the cylinder/piston. The engine won't start because now the piston was trying to compress oil, which is an incompressible liquid. I think this is what they call "hydraulic lock." So I tried to take out all 6 spark plugs to allow the oil to drain out. Sure enough, after I removed the 5th spark plug, oil drained out. After removing all 6 spark plugs, I cranked the key for several seconds so that the pistons would pump out any additional oil in the cylinder. Then, I replaced all 6 spark plugs.
After doing this, my engine was able to start again, but there was still the initial white burning smoke, but a lot less of it. So then I figured there was still some oil residue in the engine, so I stepped on the gas, and had the car at 3,000 rpm for a few minutes to try to get rid of the oil residue. After doing all this, the burning white smoke has stopped, and I believe my problem is fixed. However, now I'm getting the error message "take to the engine shop." I think that the problem is solved, but now, because of oil being in the engine, perhaps some sensors have been damaged, and therefore I'm getting this error message, even though I think that everything is ok now.
Why do you think I'm getting this error message? Do you think I did anything wrong? Can you guys make any suggestions or give any advice? Do you think I caused any permanent damage to my engine? Thanks.
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Sidom
Veteran
/ Moderator
Dec 4, 2011, 3:26 PM
Post #2 of 2
(4826 views)
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Re: Burning white smoke 2006 Cayman S
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Hydrolocking an engine is never a good thing......Some handle this better than others but if this problem only surfaced after the hydrolock problem you would be best advise to have a shop qualified to work on Porsches check this out...
I won't stress you out with some of the horror stories I've seen....
There isn't any new knocking noises is there, even very small ones???
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