I "thought" I fixed my AOS - smokey startup issue
I replaced the AOS on my '07 Boxster. I have done this before on my '98, piece of cake! Both times I've ordered what I think was an aftermarket AOS from ebay. So... now I still have the same smokey startup every now and then. Could I have received a bad AOS, or maybe a loose hose, or could something else be causing the smokey startup? Thanks!
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Maybe it is as simple as some oil still in the intake tube?
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I don't think it is residual oil... it's been several weeks now, and I drive it every day. I may recheck my hose connections.. I just cant think of what else it might be... or possibly a bad replacement AOS itself.
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Bad AOS out of the box is common for these cars. You may have gotten a bad one.
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Cant a flat six blow some smoke on occasion( on start up) just because its a flat 6 and a bit of oil gets passed the rings,..or WAS that only old school 6's. :confused:
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Factory part... don’t cheap out on water pumps or the AOS on the these cars. Just not worth the risk.
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A momentary bit of smoke at startup is normal.
A big 007-style smokescreen cloud of smoke is not normal. |
If there's one thing quickly I learned from this forum it's this:
Don't cheap out on any part that connects/bolts to the engine. Go OEM next time, and get a good night's sleep. Buy cheap, buy twice. Good day. ;) |
Have you tested the AOS by removing the engine oil cap while the car is warmed up and running? If the engine note changes and the engine wants to stall, then the AOS is bad. If not, then you're probably OK.
I used this method to determine that my AOS was shot, and I was able to replace it before it blew completely. Just sayin;........... TO |
Let your car idle a bit before you shut it down and no smoke on start up.
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Get a manometer, an extra oil cap, and a threaded tube connect and tap it into the extra cap. An easy way to test the crankcase vacuum, thus see if your AOS is on its way out, or just bad.
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Consider cleaning throttle body and related tubing.
DCM |
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I will get the extra cap and manometer as well. Thanks. |
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subscribed....I have an 01 base high mileage car.......let my brother drive it and he ran her much harder then I do......now she smokes on start up. The odd thing is that it isnt every start up.......but it does seem to be getting more consistent. New parts in the mail.....I went for the more expensive version AOS....fingers crossed.
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