Hi I have a 98 v70r that has a weird over heating issue I have replaced the thermostat and temp sensor and it seamed to help but still has the problem. I was driving it for about 20 min didn’t notice any problems and then I came to a stop and the gage started to over heat and the coolant started to gurgle and boiling over the tank just a little was wonder what could be the problem I don’t think the fan is turning on I jumped it at the relay and it worked and at the switch plug for it and it turned on but won’t do it by itself?

 

you can search the forum for some related posts. Here's one:

https://volvoforums.com/forum/volvo-...estions-60553/