After the engine has cooled down a bit, you can drive to the nearest workshop at medium speed and with smooth movement. At the same time, do not lose sight of the temperature indicator and signal light.
On the contrary, idling and creeping speed are fatal to the engine. Under these conditions, no fresh air cooling flow passes through the radiator fins. If it is only possible to continue the journey at low speed due to traffic conditions, you must immediately find out the cause of the malfunction and, if necessary, put a jumper on the thermal switch if necessary.
Malfunctions in the viscous fan
The viscous clutch must be replaced if:
- when the engine is off, the fan does not turn easily;
- the fan has a large axial and radial runout (a small gap is acceptable);
- silicone oil protrudes from the viscous clutch.
Viscous fan malfunction
1. Check additional fuses first (see chapter Electrical equipment).
2. If they are OK, then disconnect the thermal switch connector.
3. Bridge both pins in the wire connector with a piece of wire.
4. Jumper all three connectors on the two-stage thermal switch.
5. If now the fan is running with the ignition on, then (in this case empirically) the thermal switch removed from the electrical circuit is faulty - a common malfunction.
6. To continue driving, clamp the jumper wire into the connector and seal it securely with duct tape or plaster to prevent short circuits.
7. If bridging the thermal switch does not help, check the fan relay in the central switching unit (see chapter Electrical equipment). If both wires of the thermal switch are bridged, then you should hear how the switching contacts in the relay close when the ignition is turned on.
8. If this is not the case, then a temporary jumper is made in the relay. To do this, connect with a piece of wire the contacts of the relay connector of terminals 30 and 87 (paper clip) and insert the relay.
9. The radiator fan should run even when the ignition is off. If so, then the relay is faulty.
10. A jumper wire can be used as a temporary help on the road. After the trip, it must be removed.
11. If success is not achieved in this way, then check the fan motor:
12. Disconnect the wire connector to the fan motor and instead connect the red/black wire terminal to the auxiliary wire to the positive battery terminal. The brown wire connector connection connects directly to the negative terminal.
13. If the propeller still does not rotate, then the fan motor is faulty - replace it.
14. But if the fan is working, then the relays should be checked (see chapter Electrical equipment), wire connectors, as well as all connections of the thermal switch and electric fan.
15. You can continue your journey without worries also with a radiator fan powered directly from the battery. The auxiliary wire must be insulated to prevent short circuits.
Visitor comments