My engine temperature goes up when I come to a stop

[ggreggerh]

Hello everyone, Ive enjoyed reading the this forum and it looks like there are a lot of knowledgable people here. I have a 97 toyota rav4 with a problem. When I come to a stop, my engine temperature goes up to the H, but when I start going down the road the temerature goes back to the middle. Does anyone know what this might be? I just ordered an oxygen sensor because my car needed it but I am not sure if this is the problem. Thanks for anyone who takes time to respond to this

[nialusa]

sounds like your cooling fans are bust or the thermostat that controls them is, how long do you stop for before the temp goes up