Kia Rio: Engine Control System / Engine Coolant Stop Solenoid Valve (ECSSV)

Kia Rio 2017-2021 YB Service Manual / Engine Control / Fuel System / Engine Control System / Engine Coolant Stop Solenoid Valve (ECSSV)

Specifications
Specification

Item
Specification
Coil resistance (Ω)
30.0 - 35.0 [20°C(68°F)]
Pin
2

Description and operation
Description

Engine coolant stop solenoid valve is installed on the upper side of engine and it is connected to engine coolant stop valve control actuator.

Engine coolant stop solenoid valve controls the coolant stop valve to stop the coolant flow at initial engine starting.

Operation

Engine condition
Item
Operation
codition
Operation
Engine Coolant Stop
Engine Coolant Valve
Closed
By stopping the coolant flow, it improves the engine warm-up time
Block Thermostat
Closed
Solenoid Valve
ON

Normal
Engine Coolant Valve
Open
By stopping the coolant flow in cylinder block, it makes cylinder block temperautre higher.
Block Thermostat
Closed
Solenoid Valve
OFF

"High speed / High Load"
Engine Coolant Valve
Open
It prevents cylinder block over heat
Block Thermostat
Open
Solenoid Valve
OFF


Schematic diagrams
Circuit Diagram
[M/T]

[A/T]

Repair procedures
Inspection
1.

Turn the ignition switch OFF.

2.

Disconnect the VIS valve connector.

3.

Measure resistance between VIS valve terminals 1 and 2.

Specification : 28.3 - 31.1 Ω [20°C(68°F)]

Removal
1.

Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

2.

Disconnect the engine coolant stop solenoid valve connector.

3.

Disconnect the vacuum hoses (A) from the valve.

4.

Remove the engine coolant stop solenoid valve mounting bolt (B).

Installation
  

Install the component with the specified torques.

Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.

1.

Install in the reverse order of removal.

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