Elantra GLS Sedan L4-2.0L (1999)
4. Remove the air intake hose assembly.
5. Disconnect the pressure tube and the return tube fittings at the gear box side.
6. Lift up the vehicle and detach the mounting clamp which is holding both of the pressure tube and the return tube.
7. Lift down the vehicle and disconnect the clamp holding the return tube & hose assembly (G) and (C).
8. Remove the return tube & hose assembly (G).
9. Detach the air conditioning discharge hose mounting clamp.