Hyundai Elantra: Intake And Exhaust System / Intake Manifold Repair procedures

Removal and Installation
1.
Remove the engine cover.
(Refer to Engine And Transaxle Assembly - “Engine Cover”)
2.
Disconnect the battery negative terminal.
3.
Remove the air duct and air cleaner assembly.
(Refer to Intake And Exhasut System - "Air Cleaner")
4.
Remove the engine room under cover.
(Refer to Engine And Transaxle Assembly - "Engine Room Under Cover")
5.
Disconnect the wiring connectors and harness clamps and remove the wiring protector around the intake manifold.

6.
Disconnect the positive crankcase ventilation (PCV) hose (A).

7.
Unfasten the electric throttle body control (ETC) module bolts.
(Refer to Engine Control/Fuel System - "ETC (Electric throttle body control) System")
8.
Disconnect the vacuum hose (A) and purge control solenoid valve (PCSV) hose (B).

9.
Remove the intake manifold stay (A).

Tightening torque :
18.6 ~ 23.5N.m (1.9 ~ 2.4kgf.m, 13.7 ~ 17.4lb-ft)

10.
Remove the intake manifold (A) with the gasket.

Tightening torque :
18.6 ~ 23.5N.m (1.9 ~ 2.4kgf.m, 13.7 ~ 17.4lb-ft)

   
When installing the intake manifold, tighten the bolts and nuts with pre-torque first, and then tighten the bolts and nuts with specified torque in the sequence shown.

11.
Install in the reverse order of removal.
Intake Manifold Components and Components Location
Components 1. Intake manifold assembly 2. Intake manifold gasket3. Electronic throttle body4. Intake manifold stay5. Variable intake solenoid (VIS) actuator6. VCM motor ...

Variable Intake Solenoid(VIS) Actuator Repair procedures
Removal and Installation 1. Disconnect the vacuum hose (A). 2. Remove the variable Intake solenoid (VIS) actuator connector (B) and actuator (C). Tightening torque : 9.8 ~ 11.8N.m (1.0 ~ ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Emergency Fastening Device (EFD) Description and Operation
Description The Emergency Fastening Device (EFD) operates at the same time with the Seat Belt Pretensioner when it satisifies the deployment condition after a collision. It is an auxiliary equipment to prevent a driver and passenger from breaking away by pulling the seat belt toward the a ...

Hyundai Elantra AD (2016-2020) Owners Manual: Climate Control Additional Features
Automatic Ventilation (if equipped) When the ignition switch is in the ON position or when the engine is running and temperature is below 59°F (15°C) with the recirculated air position selected more than five minutes, the air intake position will automatically change to the outside (fresh) ...

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