Removal and Installation: Installation

Installation is in the reverse order of removal, paying attention to the following:
- Before installing the thermostat, make sure the gum ring is properly seated around the thermostat.
  
  Fig 1: Identifying Thermostat Jiggle Valve
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Install thermostat with jiggle valve or air bleeder at upper side.
  
  Fig 2: Installing Thermostat With Jiggle Valve Or Air Bleeder (QG18DE Engine)
  Courtesy of NISSAN MOTOR CO., U.S.A.
- Refill engine coolant after installation. Run engine for a few minutes, and check for any coolant leaks. Refer to REFILLING ENGINE COOLANT