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Discussion Starter · #1 ·
2016 XC60 T6 Radiator fans intermittently not coming on
Temp gauge goes up into the red zone and reduce speed
indicator comes on
Car can be fine for days and then acts up
Also the other day I noticed cold start the temp gauge
is already 1/4 inch off the bottom and I can actually see it move
up into the normal zone
Car is at the dealer now 80K on clock
Any input is appreciated
 

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Thermostats are known to have issues with the heating element. I've also seen bad coolant lines suck air into the cooling system and the air accumulates in the water pump causing a high rpm in the pump and the computer thinks there is no coolant so it shuts the pump off to protect it from free spinning and then the engine will overheat. There were a few coolant hoses I replaced to remedy the issue. Mind you, there was no coolant leak, only air getting in.
 
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