Engine Mechanical System
ENGINE AND TRANSAXLE Repair Procedures
In this manual: Engine Mechanical System
31steps
~186min
4/5difficulty
Done 0 of 31
DEPOSIT
- Disconnect the negative battery cable.
- Remove the engine cover. (Refer to Engine and Transaxle - "Engine Cover")
- Remove the air duct and air cleaner assembly. (Refer to Intake and Exhaust System - "Air Cleaner")
- Remove the battery. (Refer to Engine Electrical System - "Battery".)
- Remove the Engine Control Module (ECM). (Refer to Fuel System/Engine Control - "Engine Control Module (ECM)")
- Remove the battery tray. (Refer to Engine Electrical System - "Battery")
- Remove the engine undercover. (Refer to Engine and Transaxle Assembly - "Engine Undercover")
- Drain the engine coolant. (Refer to Cooling System - "Coolant")
- Recover the refrigerant, then disconnect the high-pressure and low-pressure hoses. (Refer to Heating, Ventilation and Air Conditioning - "Compressor")
- Disconnect the transmission wiring harness connectors and the transmission control cable. (Refer to Manual Transmission System - "Manual Transmission")
- Remove the intercooler inlet pipe and hoses (B). Tightening torque: Hose clamp bolt: 4.9 ~ 6.9 N·m (If equipped with a cap, tighten until the cap is separated.) Pipe mounting bolt: 19.6 ~ 26 N·m

- Disconnect the heat exchanger outlet hose (A) and the radiator upper hose (B). Tightening torque: 4.9 ~ 6.9 N·m (If equipped with a cap, tighten until the cap is separated.)

- Disconnect the radiator lower hose (A).

- Disconnect the coolant hose from the reserve tank (A) and the coolant pipe hose (B).

- Disconnect the brake booster vacuum hose (A).

- Disconnect the hoses (A) from the heater.

- Disconnect the fuel hose (A), the pressure control solenoid valve (PCSV) hose (B), and the RCV solenoid valve hose (C).

- Disconnect the fuse box cable (A), the front connector (B), and the transmission ground cable (C).

- Disconnect the battery negative terminal (A), the EMS unit (B), the fuse box connector (C), and the ground cable (D).

- Remove the front muffler. (Refer to Intake and Exhaust System - "Muffler")
- Remove the steering universal joint mounting bolt. (Refer to Steering Systems Group - Column and Shaft)
- Remove the idler arm bracket (A). Tightening torque: Bolt (B): 107.9 ~ 128 N·m Bolts (C): 49.0 ~ 64 N·m

- Remove the roller rod mounting bracket (A).
Tightening torque: 49.0 ~ 69 N·m

- Remove the subframe. (Refer to Suspension System - "Subframe")
- Support the engine and transmission with a floor jack.
- Disconnect the engine ground cable (A).
Tightening torque: 10.8 ~ 13.7 N·m

- Remove the engine mounting bracket (A). Tightening torque: Nut (B): 88.2 - 108 N·m Bolt (C) and nut (D): 58.8 - 74 N·m

- Disconnect the transmission ground cable (A).
Tightening torque: 10.8 ~ 13.7 N·m

- Remove the cover (A).

- Remove the transmission mounting bolts (A).
Tightening torque: 88.2 - 108 N·m

- Remove the engine and transmission assembly (A) by raising the vehicle.

REMEDY
To install, reverse the removal procedure. Perform the following steps:- Adjust the shift cable.
- Fill the engine with engine oil.
- Fill the gear oil into the transaxle.
- Fill the power steering system with fluid.
- Fill the radiator and reserve tank with engine coolant.
- Turn the heater control knob to the "HOT" position.
- Clean the battery terminals and cable terminals, then reconnect them.
- Check for fuel leaks.
- After installing the fuel line, turn the ignition ON (do not crank the engine) so the fuel pump operates for about two seconds and the fuel line is pressurized.
- Repeat this procedure two or three times and check that there are no fuel leaks in the fuel line.
- Bleed air from the cooling system.
- Start the engine and let it run until warm (until the radiator fan has operated 3 or 4 times).
- Turn the engine off. Check the coolant level in the radiator and add coolant if necessary. This releases air trapped in the cooling system.
- Slightly loosen the radiator cap and restart the engine. Run the engine and check for leaks.
Test yourself
A quick Hyundai i20 quiz: every answer comes with an explanation and a link to the manual page.
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