Volvo Owners Club Forum - View Single Post - Other S80 Problem:

05S80AWD · Jun 4th, 2012, 05:35

I have a 2005 S80 AWD with the 2.5 turbo gas engine. The electric cooling fan comes on immediately upon startup with a cold engine, and runs constantly when the engine is on. The fan drops to low speed for about a minute when engine is turned off, then shuts down on its own. In addition, the A/C does not work, the compressor will not engage when A/C is turned on. There is no CEL, and my generic scanner does not detect fault codes or pending codes. However, when I clear codes (even though none exist), the cooling fan turns off and stays off for sometimes a day, sometimes several days or as much as a week before the problem repeats itself. I have changed the engine coolant temperature sensor (located next to thermostat), but that did not fix the problem. I'm completely stumped. Anyone experience this?

Jun 4th, 2012, 05:35	#1
05S80AWD New Member Last Online: Jan 21st, 2013 05:05 Join Date: Jun 2012 Location: Seattle	Cooling fan runs constant, no A/C I have a 2005 S80 AWD with the 2.5 turbo gas engine. The electric cooling fan comes on immediately upon startup with a cold engine, and runs constantly when the engine is on. The fan drops to low speed for about a minute when engine is turned off, then shuts down on its own. In addition, the A/C does not work, the compressor will not engage when A/C is turned on. There is no CEL, and my generic scanner does not detect fault codes or pending codes. However, when I clear codes (even though none exist), the cooling fan turns off and stays off for sometimes a day, sometimes several days or as much as a week before the problem repeats itself. I have changed the engine coolant temperature sensor (located next to thermostat), but that did not fix the problem. I'm completely stumped. Anyone experience this?