honestly some oil in the intake is normal on modern pcv equipped cars. That amount of oil does not appear excessive. Testing the AOS is probably a good idea anyway, but I'm not sure this fully indicative of an AOS failure
honestly some oil in the intake is normal on modern pcv equipped cars. That amount of oil does not appear excessive. Testing the AOS is probably a good idea anyway, but I'm not sure this fully indicative of an AOS failure
+1
Every time I have gone to clean my TB there is some oil residue. I would expect some as that is one of the functions of the AOS. Now the amount you get is subjective. If you have puddles and white smoke then AOS would be something to look at.
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2002 S - old school third pedal
Seal Grey
First level of no tool testing is while car is running see how hard is it to remove oil filler cap. More specifically you need a tool to measure vacuum and compare the results with the expected. Search and you will find references to the tool and the nominal values expected
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2002 S - old school third pedal
Seal Grey
The car does not exhibit any of the other signs of a failed AOS, so I decided to just clean the TB for now and put everything back together. The idle is very steady now, so I’ll declare victory at this point.