That should be a D4BB diesel in that truck. They don't sell them here in the US BUT they do use that same engine for some industrial applications like generators and pumps. The attached picture is from a D4BB service manual so it should be correct. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
This is a link to the complete manual, It might help you in other information as well.
http://www.valvulita.com/sites/default/files/manual_de_servicio_hyundai_d4b.pdf
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Thursday, May 11th, 2017 AT 8:02 AM