Symptoms of AOS?

[jcb986]

The most common failures are, white smoke coming out the exhaust and the engine running rough from the oil or the engine front will have a squeal coming out of the seal around the front of the crankshaft and this is usually is after the engine has warmed up. Also, you cannot easily remove the oil filler cap when the engine is running. A new AOS comes with the seal and boot for about $115. It takes about 2 hours. Failure of this part is common. I replaced mine and the top J-tube, left the bottom as is. Search here for AOS repair...there is one that goes step-by-step. also, here is Mike's DIY.

http://sites.google.com/site/mikefocke2/mikesporscheboxsterwebpages

[ekam]

Anybody bother to install the motorsport version?

http://www.****************************************************.com/product/9XXSEP.html?Category_Code=986sport

[silverboxter]

Just got the call. O2's need to be replaced...pricey! I'll keep you informed. Now I'm a little paranoid. My wife's '02S had some smoke at start up. It only has 30k miles. hmmmm

[wanna986]

Originally Posted by silverboxter

Just got the call. O2's need to be replaced...pricey! I'll keep you informed. Now I'm a little paranoid. My wife's '02S had some smoke at start up. It only has 30k miles. hmmmm

They are attributing the smoke to the O2 sensors alone, then?

[silverboxter]

Got her back Thursday.
AOS
new plugs
4 O2 sensors
(MAF not needed)
$2k

Glad to have her back. My advice: If you suspect that your AOS is failing, get it changed out. You could save yourself $1200 in O2 sensors. Just my 2 cents. ; )