Hyundai Elantra (CN7): Intake And Exhaust System / Exhaust Manifold

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Mechanical System / Intake And Exhaust System / Exhaust Manifold

Components and components location

Components

1. Oil drain pipe gasket
2. Oil drain pipe
3. Oil feed pipe
4. Torbo charhe water outlet hose & pipe B
5. Torbo charhe water inlet pipe
6. Torbo charhe water outlet pipe A
7. Electric waste gate actuator (EWGA)
8. Exhaust manifold gasket
9. Exhaust manifold & Turbo charger
10. Exhaust manifold heat protector A
11. Exhaust manifold heat protector B
12. Intercooler pipe braket
13. Exhaust manifold & Turbo charger stay bracket
14. Warm up catalytic converter
15. Warm up catalytic converter gasket
16. Warm up catalytic converter upper stay bracket
17. Cylinder head heat peotector

Repair procedures

Removal and Installation
1.
Disconnect the negative battery terminal.
2.
Remove the engine cover.
(Refer to Engine and Transaxle Assembly - "Engine Cover")
3.
Remove the engine room under cover.
(Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")
4.
Drain the coolant.
(Refer to Cooling System - "Coolant")
5.
Disconnect the engine ground cable (A).
Tightening torque :
10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 - 10.1 lb-ft)

6.
Install the jack to the edge of oil pan.

   
•
Insert the rubber block between jack and oil pan.
7.
Remove the engine mounting support bracket (A).
Tightening torque :
Nut (B) : 88.3 - 107.9 N.m (9.0 - 11.0 kgf.m, 65.1 - 79.6 lb-ft)
Bolt, Nuts (C) : 58.8 - 73.6 N.m (6.0 - 7.5 kgf.m, 43.4 - 54.2 lb-ft)

8.
Disconnect the turbo charger outlet hose (A).

9.
Remove the warm up catalytic converter(WCC) upper stay bracket (A).
Tightening torque :
39.2 - 44.1 N.m (4.0 - 4.5 kgf.m, 28.9 - 32.5 lb-ft)

   
•
When installing, temporarily tighten the nut in picture order.

10.
Remove the front muffler.
(Refer to Intake and Exhaust Manifold - "Front Muffler")
11.
Remove the warm up catalytic converter(WCC) lower stay bracket (A).
Tightening torque :
49.1 - 54.0 N.m (5.0 - 5.5 kgf.m, 36.2 - 39.8 lb-ft)

   
•
When installing, temporarily tighten the nut in picture order.

12.
Remove the warm up catalytic converter (WCC) (A).
Tightening torque :
35.3 - 41.2 N.m (3.6 - 4.2 kgf.m, 26.0 - 30.4 lb-ft)

   
•
When installing, replace with a new gasket.
13.
Remove the air duct and air cleaner assembly.
(Refer to Intake and Exhaust System - "Air Cleaner")
14.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
15.
Disconnect the turbo charger intake hoseB (A).

16.
Remove the tbreather hose and pipe (A).

17.
Remove the turbo charger inlet pipe (A).

18.
Disconnect the intercooler inlet hose (A).
Tightening torque :
Clamp bolt : 4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft)

   
•
Insert the hose until it reaches the end of stopper.
•
When installing the intercooler inlet hose, Match the alignment marks.
19.
Remove the intercooler hose & pipe (A).
Tightening torque :
Mounting bolt : 18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft)
Clamp bolt : 4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft)

   
•
Insert the hose until it reaches the end of stopper.
•
When installing the intercooler inlet hose, Match the alignment marks.
20.
Disconnect the turbo charger outlet hose (A), and then remove the water pipe (B).
Tightening torque :
Bracket bolts : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
Eye bolt : 34.3 - 39.2 N.m (3.5 - 4.0 kgf.m, 25.3 - 28.9 lb-ft)

   
•
When installing, replace with a new eye bolt gasket.
•
When installing, provisionally tighten the bracket bolts and eyebolt and then tighten the eyebolt with specified torque.
21.
Remove the turbo charger inlet hose & pipe (A).
Tightening torque :
Eye bolt : 34.3 - 39.2 N.m (3.5 - 4.0 kgf.m, 25.3 - 28.9 lb-ft)

   
•
When installing, replace with a new eye bolt gasket.
22.
Remove the turbo charger heat protect (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

23.
Remove the turbo charger oil drain pipe(A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

   
•
When installing, replace with a new gasket.
24.
Remove the turbo charger oil feed pipe(A).
Tightening torque :
Oil feed eye bolt : 16.7 - 21.6 N.m (1.7 - 2.2 kgf.m, 12.3 - 15.9 lb-ft)
Oil feed pipe : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
Oil feed pipe bracket bolt : 18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft)

   
•
When installing, replace with a new gasket.
25.
Remove the turbo charger heat protector (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

26.
Remove the exhaust manifold & turbo charger (A).
Tightening torque :
49.1 - 54.0 N.m (5.0 - 5.5 kgf.m, 36.2 - 39.8 lb-ft)

   
•
When installing the exhaust manifold tighten the nuts with specified torque in the sequence shown.

27.
Remove the exhaust manifold & turbo charger gasket (A).

   
•
When installing, replace with a new gasket.
28.
Remove the C- ring, and then remove the electric WGT control actuator (A) after loosening the mounting bolts.

29.
Install in the reverse order of removal.
   
•
Adjust the EWGA.
(Refer to Engine Control / Fuel System - "Electric WGT Control Actuator")

    Components and components location Components1. Electronic throttle body (ETC)2. Return hose3. Return pipe4. Intake manifold5. Intake manifold gasket Repair procedures Removal and Installation1.

    Repair procedures Removal and Installation1.Remove the Turbocharger & Exhaust Manifold.(Intake And Exhaust System - "Exhaust Manifold")On-vehicle InspectionTurbocharger Diagnostic Flow If any problem related with turbocharger, such as lack of engine power, poor acceleration, abnormal engine noise or oil leaks, may occur, check the turbocharger according to the procedure as follows.

    Other information:

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Compressor oil

    Repair procedures Oil Specification1.The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil. The two oils must never be mixed.2.Compressor (PAG) oil varies according to compressor model. Be sure to use oil specified for the model of compressor.

    Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and components location

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