LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (Engine Cooling System - 2.0L (Except HEV)) >> Thermostat >> Repair Procedures >> Removal and Installation

Removal and Installation

WARNING: This page is about a different variant/trim than selected.
NOTE: Removal of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. Do not remove the thermostat, even if the engine tends to overheat.
  1. Disconnect the battery negative terminal.
  2. Remove the air cleaner.

    (Refer to Intake And Exhaust System - "AIR CLEANER ")

  3. Drain engine coolant so its level is below thermostat. (Refer to Cooling System - "COOLANT ")
  4. Remove the radiator lower hose (A).
    Fig 1: Removing Radiator Lower Hose
    G11994034Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove the water inlet fitting (A).

    Tightening torque: 

    7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

    Fig 2: Removing Water Inlet Fitting
    G11994035Courtesy of HYUNDAI MOTOR AMERICA
  6. Remove the thermostat (A).
    Fig 3: Removing Thermostat
    G11994036Courtesy of HYUNDAI MOTOR AMERICA
  7. Install in the reverse order of removal.
    NOTE: Install the thermostat with the jiggle valve upward.
  8. Fill the engine coolant.
  9. Start the engine and check for leaks.
  10. Recheck the coolant level.
scientia non olet · About LEMON Manuals