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Your 1987 Toyota pickup idles rough and smokes a lot until engine is warm what could be the cause of this?
Wiki User
∙ 17y ago
The valve guides and seals are worn, allowing a mist of oil to be drawn into the combustion chambers when the engine is cold. Once the engine warms up, the valve stems expand, reducing the clearance between them and their guides, effectively cutting off the flow of oil mist. The remedy for this is to have a valve-job performed on the engine.
Wiki User
∙ 17y ago
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