Need advice on 4d56 engine: swap to surplus or overhaul?

[falken]

Pa advice ako sir. Newbie po ako sa deisel engine

2008 Captiva po unit ko

Mukhang need overhaul may black smoke na kasi kahit naka idle lng.

Or baka meron ho kayong ma suggest na pwede ko gawin para hindi e overhaul.

Need din po ako advise san maganda mag pa check las pinas Daang Hari po location ko sana yung malapit lng

Salamat po

Have your fuel injection system checked first.

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