Quote:
Originally Posted by smk70
is the top radiator hose getting hot,it could be a stuck thermostat. If the water pump has failed the rotor part would have to detach from the shaft and volvo pumps are usually 100% reliable. It would be much easier to split the thermostat housing and check the thermostat than start replacing the water pump.
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Yeah, sometimes there might be a questionable water pump installed though.
https://www.youtube.com/watch?v=I6MkBufU8yU&t=53s