Hyundai Elantra CN7: Engine And Transaxle Assembly

Seventh generation (CN7; 2021–2025) / Hyundai Elantra CN7 2021-2025 Workshop Manual / Engine Mechanical System / Engine And Transaxle Assembly

Engine Cover

Repair procedures

Removal and Installation

1.	Remove the engine cover (A).

2.	Installation is reverse order of removal

Engine Room Under Cover

Repair procedures

Removal and Installation

Remove the engine room under cover (A).

Tightening torque :

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

2.	Installation is reverse order of removal.

Engine Mounting

Components and components location

Components

1. Engine mounting bracket
2. Engine mounting support bracket

3. Roll road braket
4. Transaxle mounting bracket

Repair procedures

Removal and Installation

Engine mounting bracket

1.	Remove the engine room under cover. (Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

Install the jack to the edge of oil pan.

•	Insert the rubber block between jack and oil pan.

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)

Loosen the coolant reservoir tank (A) mounting bolts to obtain engine mounting working space.

Tightening torque :

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

Remove the engine mounting bracket (A).

Tightening torque :

.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 lb-ft)

6.	Installation is in the reverse order of removal.

Transaxle mounting bracket

1.	Disconnect the negative battery terminal.

2.	Remove the engine room under cover. (Refer to Engine and Transaxle Assembly - "Engine Room Under Cover")

3.	Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner")

4.	Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery")

Place the jack under the transaxle.

•	Insert the rubber block between jack and transaxle.

6.	Remove the service cover (A).

Loosen the transaxle support bracket mounting bolts (A).

Tightening torque :

88.3 - 107.9 N.m (9.0 - 11.0 kgf.m, 65.1 - 79.6 lb-ft)

Remove the transaxle mounting bracket (A).

Tightening torque :

49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 lb-ft)

9.	Installation is in the reverse order of removal.

Roll rod bracket

Remove the roll rod bracket (A).

Tightening torque :

Bolt (B): 107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)

Bolts (C): 49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 lb-ft)

Remove the roll rod support bracket (A).

Tightening torque :

49.0 - 68.6 N.m (5.0 - 7.0 kgf.m, 36.2 - 50.6 lb-ft)

3.	Installation is in the reverse order of removal.

Engine And Transaxle Assembly

Repair procedures

Removal

•	Use fender covers to avoid damaging painted surfaces.

•	To avoid damage, unplug the wiring connectors carefully while holding the connector portion.

•	Mark all wiring connector and hoses to avoid misconnection.

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.	Recover the A/C refrigerant and then remove the high & low pressure pipes of A/C compressor. (Refer to Heating, Ventilation Air conditioning - "Compressor")

6.	Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner")

7.	Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery")

8.	Disconnect the brake booster vacuum hose (A).

9.	Disconnect the fuel hose (A) and PCSV hose (B).

10.	Disconnect the wiring connectors and harness clamps and remove the connector brackets around the engine and transaxle assembly.

11.

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)

12.

Disconnect the transaxle ground cable (A).

Tightening torque :

26.5 - 32.4 N.m (2.7 - 3.3 kgf.m, 19.5 - 23.9 lb-ft)

13.

Remove the intercooler inlet hose and pipe.

(1)	Disconnect the RCV vaccum hose (A).

(2)	Disconnect the RCV valve connector (A).

(3)

Remove the intercooler inlet hose and pipe (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.

14.

Remove the intercooler outlet hose and pipe.

(1)

Disconnect the intercooler outlet hose (A).

1)	When disconnecting the intercooler hose, pull the quick connector clamp (A) in the direction of the arrow as below.

2)	Move the quick connector clamp from B to C position as below and then disconnect by pulling the quick connector hose.

(2)

Loosen the intercooler outlet pipe bolt, and then remove the intercooler outlet hose and pipe (A).

Tightening torque :

Bracket bolt : 6.86 - 10.78 N.m (0.7 - 1.1 kgf.m, 5.06 - 7.96 lb-ft)

Clamp bolt : 4.90 - 6.86 N.m (0.5 - 0.7 kgf.m, 3.62 - 5.06 lb-ft)

15.	Disconnct the radiator upper hose (A).

16.	Disconnct the radiator lower hose (A).

17.	Disconnect the coolant reservoir tank water hoses (A).

18.	Disconnect the heater hoses (A).

19.	Remove the universal joint from the shaft joint (Refer to Steering System - "Steering column & shaft")

20.

Remove the front muffler heat protector (A).

Tightening torque :

9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

21.

Loosen the hanger (A) and then remove the front muffler (B).

Tightening torque :

39.2 - 58.8 N.m (4.0 - 6.0 kgf.m, 28.9 - 43.4 lb-ft)

22.

Remove the roll rod bracket (A).

Tightening torque :

Bolt (B): 107.9 - 127.5 N.m (11.0 - 13.0 kgf.m, 79.6 - 94.0 lb-ft)

Bolts (C): 49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 lb-ft)

23.

Remove the roll rod mounting support bracket (A).

Tightening torque :

49.0 - 68.6 N.m (5.0 - 7.0 kgf.m, 36.2 - 50.6 lb-ft)

24.	Remove the sub frame. (Refer to Suspension System - "Sub frame")

25.	Support the engine and transaxle assembly safely with a floor jack.

26.

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)

27.	Remove the service cover (A).

28.

Remove the transaxle mounting bolts (A).

Tightening torque :

88.3 - 107.9 N.m (9.0 - 11.0 kgf.m, 65.1 - 79.6 lb-ft)

29.

Remove the engine and transaxle assembly from a vehicle by slowly lifting off the vehicle.

•	Before removing the engine assembly, make sure to check that the hoses and wire connectors are completely disconnected.

•	When removing the engine and transaxle assembly, be careful not to damage any surrounding parts or body components.

30.

Install in the reverse order of removal.

•	Refill a radiator and a reservoir tank with engine coolant. (Refer to Cooling System - "Coolant")

•	Check the engine oil level. If necessary, refill engine with engine oil.

•	Check the transaxle oil level. If necessary, refill a transaxle with fluid.

•	Charging the refrigerant gas.

•	Inspect for fuel leakage.

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