SX4 4WD L4-2.0L (2008)
Valve
Visual inspection
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Remove all carbon from valves.
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Inspect each valve for wear, burn or distortion at its face and stem end, as necessary, replace it.
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Inspect valve stem end face for pitting and wear. If pitting or wear is found there, valve stem end may be resurfaced, but not too much to grind off
its chamber. When it is worn out too much that its chamber is gone, replace valve.