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Old 09-23-2010, 01:44 AM   #1
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Engine blewl smoke

Hi I have a 97 986 was over taking a car noticed the engine check light come on saw smoke from the exhaust lots. It cleared after about two minuits engine check light still :dance on still expect oil over the oxygen sensor doing that dose not misfire any ideas what is going on??
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Old 09-23-2010, 04:40 AM   #2
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probably an A/O (air/oil) Separator failure.
Very common item to go. I would not drive it. Have it flat bedded to your mechanic of choice unless you want to diy. Lots of previous discussions here on the forum regarding this subject.
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Old 09-23-2010, 04:40 AM   #3
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scan it for codes....check all fluid levels
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Old 09-23-2010, 08:51 AM   #4
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Quote:
Originally Posted by kabel
probably an A/O (air/oil) Separator failure.
Very common item to go. I would not drive it. Have it flat bedded to your mechanic of choice unless you want to diy. Lots of previous discussions here on the forum regarding this subject.

I concur... sounds like the A/O failed or at least partially failed/cracked. I've seen one fail at the track and there was a LOT of smoke. But if you have smoke AND oil on the O2 sensors, then you're either looking at a failed A/O separator or something much worse inside the engine. I'd lean towards the A/O separator being the problem and get it replaced. Do a search as there is an option to upgrade it to a better unit.

Kirk
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