What happens when AOS fails on Porsche Cayman?
Of course, once it fails completely, the resultant burning oil produces huge clouds of white smoke – this is fairly obvious. At that point, it is clear what needs to be done. However, replacing the AOS sooner rather than later can be a good precaution against other failures.
Why does my Porsche Cayman have smoke coming from the engine?
A quick puff of smoke as you start a cold engine is not uncommon, especially on the Porsche flat six engine in the Cayman. There are many theories and various thoughts as to why this happens – none are proven.
Where does the Clean Air go when the AOS fails?
The “clean” air is now sent into the air intake (after the throttle body) to be burned off by the engine. When the AOS starts to fail it cannot separate all of the oil out of the mist and some liquid oil is sent to the air intake. A few drops of oil is enough to generate the GREAT SMOKE BOMB for which our cars are famous for.
What are the ignition coils on a Porsche Cayman?
The ignition coils on the M97 Cayman engines have been updated by Porsche multiple times. The original coils were prone to cracking and were replaced by a more substantial version.
Why does my Porsche Cayman have white smoke?
White/Bluish smoke on cold start, and it makes a giant, embarrassing and smelly smoke screen in the driveway or on the street… That was exactly what happened to my 2008 Porsche Cayman. Although this problem seems more common among 986 Boxster and 996 911, some other Porsche sports cars may have the same issue.
The “clean” air is now sent into the air intake (after the throttle body) to be burned off by the engine. When the AOS starts to fail it cannot separate all of the oil out of the mist and some liquid oil is sent to the air intake. A few drops of oil is enough to generate the GREAT SMOKE BOMB for which our cars are famous for.
Can a faulty AOS cause white smoke?
My recollection is that a faulty AOS can produce clouds of persistent white-ish smoke on start-up.
How can I remove the AOS from my car?
With the spring clap open and the hardware removed you can pull up on the AOS to remove it. On the right you can see my finger pointing to the clamp on the rubber sleeve after the AOS has been pulled out. You can also see the on the lower edge the AOS base on the engine and the two threaded holes for the securing bolts.