3. Visually Inspect Hoses, Connections And Gaskets

1. Check for cracks or damage.

HINT: 

Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine to run improperly. Disconnection, looseness or cracks in the parts of the air induction system between the throttle body and cylinder head will allow air suction and cause the engine to run improperly.

Fig 1: Identifying Leakage Points

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