p88player

Just for clarification, the AOS was in fact the main issue. When pulled out the bottom bellows had practically been blown apart from the main body of the AOS. So thank you to everyone who accurately tagged the AOS as the problem to my incident on the freeway.

Alright, I've finally gotten around to changing my AOS! So I actually did more than change the AOS. I also change the spark plugs, oil, oil filter, and air filter. My ride is up and running, however it's not up to 100%. Is it normal for the car to have the following symptoms after the new parts have been installed? 1. Although the white smoke has decreased dramatically, sometimes, there is still a little bit of smoke at start up. 2. In first three gears, the car doesn't pick up to full potential until 3000 rpms. 3. Every once in a while after driving it hard, there seems to be a random hollow pop sound which comes from the bottom left side of the car and can be felt in the pedals. 4. Sometimes when punching the gas the car has a hard time keeping up with the escalating rmps, and for lack of a better description, appears to slightly choke. Not enough to cause the car to stall but enough to keep the rpms from rising quickly I'm at a loss for ideas. Any clues? Thank to everyone that has responded :)

Thanks for the hand Maurice! I looked into the site you recommend, very informational in regards to DIY replacement. So now that I have an idea of what's wrong, I have a couple more questions. If my problem is indeed an AOS issue: 1) How can I tell if the AOS has completely failed? 2) If it has completely failed, would there be additional damage? 3) What kind of additional damage may have been caused? I would be thrilled if I could solely replace the AOS and get back on the road, however I'm just extra concerned because there was ALOT of smoke in addition to my car stalling while driving. Thanks again Gabriel

Hello, I had an incident on the freeway the other day in my 1999 boxster and I have no idea what kind of damage I'm looking at or how to fix it. I was on the freeway cruising and out of the blue my car stalled out in 5th gear at about 70mph! No awkward sounds, jolting, sputtering, or anything of the sort just immediate stall and a cloud of white smoke. I looked in my rear view and there was TONS of white smoke being poured out from what seemed to be the exhaust, I don't recall smoke exiting the engine vents. Immediately, I pulled over to the shoulder and let my car sit in the off position and it remained smoking. Against my best judgment, I restarted my car a few minutes later and drove an addition 1/4 mile to the nearest exit. Fortunately there was a gas station at the exit to stop at until my tow arrived. When he arrived I started it again to unlock my wheels to align it with the flatbed, this time the smoke continued to slowly creep from the left side of the exhaust for about 5 minutes. For about a week prior to this, my car would smoke at start up after remaining off for a few hours. I had arranged to meet with a mechanic but needless to say I didn't get to see him before this incident. I will be meeting with him this weekend, however he is now a porsche mechanic so I'm trying to get some addition feedback to get ideas of what the problem could be. I have about 83000 miles on the car, I'm pretty good about keeping up with the maintenace, and I have not had any other problems with it prior to this. Any ideas, thoughts, comments about my stall and smoke of death?