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Why does your Toyota Corolla smoke from exhust?

Updated: 8/19/2019
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Wiki User

12y ago

Best Answer

If it smokes on startup, it has worn valve seals.

If it smokes while running, it has worn piston rings (and perhaps worn valve seals, too.)

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Wiki User

12y ago
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Q: Why does your Toyota Corolla smoke from exhust?
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