You can test things by grounding, one at a time, the relay pins associated with the yellow and the yellow/white wires that go to the center of the cooling fan relay. One should turn the fan on high speed and the other should turn the fan on low speed. If that works then the fan and the relay are good. 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 Reasons a Volvo XC90 Radiator Fan Isn't Working. The most common reasons a Volvo XC90 radiator fan isn't working are the fan assembly, the fan clutch, or the coolant temperature sensor. 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. 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. 0:00 / 14:37 VOLVO "HOT HATCH" RADIATOR FAN FIX | Volvo C30 T5 [Finale] FLIP MY RIDE 3.19K subscribers Subscribe 2.6K views 2 years ago In this episode the Volvo C30 T5 R-Design gets sold Below are four signs that cooling fan failure may be imminent in a Volvo: The engine temperature gauge rises into the red zone: If you notice your dashboard engine warning light illuminating, it is most likely because the engine is overheating. Immediately pull over in a safe area and turn the engine off.
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.
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