Kia Cadenza YG: Cooling System / Thermostat Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Engine Mechanical System / Cooling System / Thermostat Repair procedures

Removal
   
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.
Drain engine coolant so its level is below thermostat.
(Refer to Cooling System - "Coolant")
2.
Disconnect the ratiator lower hose (A).

(Refer to Cooling System - "Radiator Hose")
3.
Remove the water inlet fitting (A) and the thermostat (B).

Inspection
1.
Immerse thermostat in water heated to over 95°C (203°F), then heat for at least 3 minutes to check valve lift.

   
•
Do not use water below 95°C (203°F).
•
Do not directly heat unit as this will damage thermostat.
2.
Check the valve opening temperature.
Valve opening temperature:
88±2°C (109.4±3.6°F)
Full opening temperature: 100°C (212°F)
If the valve opening temperature is not as specified, replace the thermostat.
3.
Check the valve lift.
Valve lift : 10mm (0.3937in.) or more at 95°C (203°F)
If the valve lift is not as specified, replace the thermostat.
Installation
1.
Place the thermostat in thermostat housing.
(1)
Install the thermostat with the jiggle valve upward.
(2)
Install a new thermostat (B).

2.
Install the water inlet fitting (A).
Tightening torque :
9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)
3.
Connect the ratiator lower hose (A).

4.
Install the ratiator upper hose.
(Refer to Cooling System - "Radiator Hose")
5.
Fill with engine coolant.
6.
Start engine and check for leaks.

    Components 1. Water temperature control assembly2. Thermostat3. Water inlet fitting pipe

    Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bolts and check leakage again.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Blower Unit Components and Components Location

    Component Location Components 1. Duct Seal2. Duct Case3. Inlet Door4. Intake Actuator5. Inlet Duct Case (A)6. Climate control air filter7. Cluster Ionizer8. Climate control air filter Cover9. Blower Upper Case10. Blower Lower Case11. FET12. Resistor13.

    Kia Cadenza YG 2016-2021 Service Manual: Intake Actuator Repair procedures

    Inspection 1. Ignition "OFF". 2. Disconnect the intake actuator connector. 3. Verify that the actuator operates to the recirculation position when connecting 12V to the terminal 3 and grounding terminal 7. 4. Verify that the intake actuator operates to the fresh position when connecting in the reverse.

    Categories

     
    Copyright © 2026 www.kcadenzavg.com - 0.0317