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Oil in air intake box

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26K views 19 replies 9 participants last post by  Joe19jeep  
#2 ·
PCV might be stuck open. If you haven't replaced your PCV in awhile, 1) it's not an expensive fix, 2) it will need replacement at some point anyway, and 3) if it's not the problem, at least you'll have eliminated one possibility.
 
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