Removal and installation of the electric radiator fan

Note: See warning in paragraph 1 this chapter.

Examination

1. The radiator fan of the cooling system is controlled by the electronic control unit of the engine management system, depending on the signal received from the coolant temperature sensor. Where two sections of the fan are installed or one - two-speed, control is carried out through a resistor mounted on the fan casing from the bottom left. In the event of a malfunction, it can be replaced separately.

2. Check appropriate fuses and relays beforehand (chapter 12). To check the fan motor, disconnect the wiring connector and use the auxiliary wires and the fuse included in the circuit to connect the fan to the battery. If after that it does not rotate, replace the electric motor.

4. If the electric motor is normal, then the malfunction is caused by the coolant temperature sensor (details of its verification - see paragraph 6), wiring loop (chapter 12, verification details) or engine management system (chapter 4A).

Withdrawal

4 cylinder engines

5. Disconnect the negative battery cable (chapter 5, paragraph 1).

6. Remove the resonator support bracket bolts from the engine compartment front cross member. Loosen the screws of the two clamps that secure the resonator to the air flow meter and prechamber hoses. Then move the resonator away from the thermostat housing (chapter 4A).

7. Empty the cooling system (Chapter 1).

8. Remove the upper radiator hose. Disconnect the metal pipe/coolant hose from the thermostat and remove the coolant pipe bolts from the exhaust manifold heat shield.


9. Disconnect the electrical connector (-s) electric fan. Then release all hoses and wires from the fan casing.

10. Turn away two nuts of fastening of a casing of the fan. Then lift the assembly up to remove it from the bottom supports and the top edge of the radiator (see fig. 5.10, a, b).





11. Remove the fan and shroud as one unit (see fig. 5.11).

V-shaped 6-cylinder engines

12. Disconnect the negative battery cable (chapter 5 paragraph 1).


13. Empty the cooling system (Chapter 1).

14. Disconnect the electrical connector (-s) electric fan. Then release all hoses and wires from the fan casing. On models with an air conditioning system, move the air conditioning hoses to provide access without disconnecting them.

15. Turn away two nuts of fastening of a casing of the fan. Then lift the assembly up to clear the lower supports and the top edge of the radiator.

16. Move the knot back as far as possible and tie it to the engine.

17. To ensure the removal of the fan, you need to remove the radiator (paragraph 7).

18. After removing the radiator, the fan can be lowered down from the engine compartment and removed.

All models

19. The fan, its electric motor and casing are replaced as a single unit.

Installation

20. Installation - in the reverse order of removal.

• A) On V-6 models, install the fan assembly before installing the radiator (chapter 7).
• b) Make sure the shroud is seated on all four legs, then install and tighten the nuts.
• V) Recharge the cooling system (Chapter 1).