If the fan runs, you probably have problems with the relay or the temperature sensor. The temp sensor is just below the thermostat in the lower thermostat housing near the power steering pump. The attached diagram show you the wiring for our Volvo> Hope this helps, good luck. It is possible that the wires and connectors are faulty. If you notice that the fan does not work even when the car is overheating, there might be a wiring issue or a bad connection. If this is the case, you must fix them. You should check the wires from the control unit or relay to the radiator fan. Volvo XC70 Radiator Fan Not Working? RepairPal will help you figure out whether it's your Fan Assembly, Fan Clutch, Coolant Temperature Sensor, or something else. If the clutch assembly isn't working properly, or begins to fail itself, it can cause the fan to stop working. Over time, the clutch assembly will begin to wear and require servicing. Inspecting the clutch assembly for your cooling fan should be a part of routine care for your Volvo. The most common reasons a Volvo S80 radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor. 0 % 45 % of the time it's the Fan Assembly 0 % 45 % of the time it's the Fan Clutch 0 % 10 % of the time it's the Coolant Temperature Sensor Common Repairs Serpentine Belt Replacement 2004 Volvo s60 2.4L I5 Cooling Fan Replacement Explanation. I was pretty sure I had correctly diagnosed that my Engine Cooling Fan / FCU (Fan Control Unit) were bad, but I wanted to make sure Symptoms of a Cooling Fan Module Failure. A problem in the cooling fan module will not go undetected in your Volvo because of the important role that it plays. Some of the symptoms that you will notice immediately when this problem occurs include: An overheating engine. When the cooling fan module fails completely, the cooling fans will not IA0rWG.

volvo cooling fan not working