simple fix or rebuild in order?

General engine questions/issues that aren't specific to the other categories
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simple fix or rebuild in order?

By ExCoupe94
- Thu Jul 28, 2011 6:14 pm #265380 b18b1, smokes hella after down shifting, Im suspecting from the increased vacuum in the manifold while slowing the car down via motor. anyways anyone else familiar with this issue? im thinkin piston rings or pcv. :cry:
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By RWMIII
- Thu Jul 28, 2011 11:56 pm #265425 Sounds like bad valve seals to me.

Bad valve seals show their true colors when the vacuum is strong, such as deceleration with the throttle closed.
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