Sentra L4-1.8L (QG18DE) (2004)
Engine Oil: Testing and Inspection
Oil Leakage
OIL LEAKAGE
Check for oil leakage around the following areas.
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Oil pan
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Oil pan drain plug
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Oil pressure switch
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Oil filter
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Front cover
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Mating surface between cylinder block and cylinder head
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Mating surface between cylinder head and rocker cover
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Crankshaft oil seal.