when did your AOS fail?

[Bala]

Originally Posted by tonycarreon

so i hope i'm not about to jinx myself, but my '01 AOS still hasn't failed. at nearly 97k miles. did the "oil cap" test again today and it still comes right off with no effort. wondering, of those who have had to replace theirs, when did it finally fail?

I dont think that is the only comfirming factor. You should open the TB and intake cross hoses and check for oil. My oil fill cap test was good but, oil in the hoses. Turns out the oil fill tube from the filler hole to the engine had cracks at the ribbed portion.