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.

CVVT Oil Control Valve (OCV)

Description and operation Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load...

Fuel Pressure Control Valve (FPCV)

Description and operation Description Installed on the high pressure fuel pump, the Fuel Pressure Regulator Valve controls the fuel amount flowing into the injectors in accordance with the ECM signal calculated based on various engine conditions...

Other information:

Hyundai Palisade (LX2) 2020-2025 Owner's Manual: Heated Steering Wheel

When the ignition switch is in the ON position or when the engine is running, press the heated steering wheel button to warm the steering wheel. The indicator on the button will illuminate. To turn the heated steering wheel off, press the button again...