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

Kia Rio 2017-2023 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.

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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