Hyundai Palisade: Engine Control System / Variable Intake Solenoid (VIS) Valve

Hyundai Palisade (LX2) 2020-2025 Service Manual / Engine Control/Fuel System / Engine Control System / Variable Intake Solenoid (VIS) Valve

Description and operation

Description

Installed on the intake manifold (VIS Valve 1) and the surge tank (VIS Valve 2), the Variable Intake manifold Solenoid (VIS) valves 1 and 2 control the vacuum modulators, which activate the valves in the intake manifold and the surge tank. These valves open or close according to engine condition. (Refer to below table.)

Hyundai Palisade. Description and operation

Specifications

Specification

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

Schematic diagrams

Circuit Diagram

Hyundai Palisade. Schematic diagrams

Harness Connector

Hyundai Palisade. Schematic diagrams

Repair procedures

Inspection

1.	Switch "OFF" the ignition.

2.	Disconnect the VIS valve connector.

3.	Measure resistance between the VIS valve terminals 1 and 2.

Check that the resistance is within the specification.

Specification : 30.0 - 35.0Ω [20°C (68°F)]

Removal

[VIS #1]

1.	Switch "OFF" the ignition and disconnect the negative (-) battery terminal.

2.	Disconnect the variable intake solenoid valve connector (A).

3.	Disconnect the vacuum hoses (B) from the valve.

Remove the mounting nut (C) and then remove the valve from the surge tank.

Variable intake solenoid valve mounting nut :

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

Hyundai Palisade. Repair procedures

[VIS #2]

1.	Switch "OFF" the ignition and disconnect the negative (-) battery terminal.

2.	Disconnect the variable intake solenoid valve connector (A).

3.	Disconnect the vacuum hoses (B) from the valve.

Remove the installation nuts (C) and then remove the valve from the surge tank.

Variable intake solenoid valve mounting nut :

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

Hyundai Palisade. Repair procedures

Installation

•	Install the component to the specified torque.

•	Note that internal damage may occur if the component drops. In this case, inspect it before installation.

•	Keep foreign materials away from flowing into the valve.

1.	Install in the reverse order of removal.

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