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Old 02-23-2012, 07:31 PM   #1
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Burning Oil Smell

While on a trip, my wife took my 2000 S out for a drive and when she came back she called me and said that she thought that she smelled oil burning when the car was came to a stop and was shut down. The car has 98K miles and has never leaked a drop in the two years that I have owned it. I am afraid to even start it, for fear of doing damage. Where should I start?
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Old 02-24-2012, 04:34 AM   #2
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Look underneath and check for leaks. Start with the cam covers, they tend to seep oil onto the exhaust which gives a pronounced burned oil smell. Also check around the spark plug coils, the sealing rings on the spark plug tubes also tend to leak.

On top of the engine, check the oil fill tube for cracks.
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Old 02-24-2012, 04:49 AM   #3
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The car that was parked prior your boxster leaked oil on the pavement. The heat from your exhaust muffler(s) being 10" above a pool of old dry oil can create some similar smells
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Old 02-24-2012, 05:22 AM   #4
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I also smell burning oil smell after parking my car. There has no leakage after check up at garage... And now I have my car color changed so sitting at the workshop for couple weeks seems no leakage.... Strange.
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Old 02-24-2012, 01:45 PM   #5
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I also smell burning oil smell after parking my car. There has no leakage after check up at garage... And now I have my car color changed so sitting at the workshop for couple weeks seems no leakage.... Strange.
If you smell oil, then you are leaking it somewhere and burning it. could be so many different things some were already mentioned. I also have seen AOS tubes including the tubes from the heads to the AOS leak. on an older car they dry out and crack. Power steering pump reservoir could leak and the oil stays on top of engine until you drive and some spills and burns on the exhaust. Had a car that did that.
It's like smoke, you see it you smell it , there is a fire.
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Old 02-24-2012, 06:23 PM   #6
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Originally Posted by harryrcb View Post
If you smell oil, then you are leaking it somewhere and burning it. could be so many different things some were already mentioned. I also have seen AOS tubes including the tubes from the heads to the AOS leak. on an older car they dry out and crack. Power steering pump reservoir could leak and the oil stays on top of engine until you drive and some spills and burns on the exhaust. Had a car that did that.
It's like smoke, you see it you smell it , there is a fire.
Hi Harry. Could u tell me where is those AOS tube ? Thanks.
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Old 02-26-2012, 07:11 PM   #7
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Thanks for the input, I'll have to wait a couple of weeks to dig into it to find the culprit.
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Old 02-27-2012, 08:59 AM   #8
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Hi Harry. Could u tell me where is those AOS tube ? Thanks.
unfortunately they are not easy to get to, under and between intake manifold from the left head in front (4-6) the AOS sits on top of the other head. then you have a short tube from the AOS to the throttle body. the hose is about 3/4" diameter and accordianed to make it flexible
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