I noticed while sitting in traffic, that the temp gauge was going up real slowly. It wasn't close to the "red line" or anything, but its the first time I noticed it. The temp was about 65 degrees outside. When I started driving on the highway, the temp gauge went down to the normal level. The car has appox 90,000 miles on it. I have not noticed any leaks and checked the fluid levels and they all look good. I have been hearing it could be water pump, thermostat. or intake manifold gasket. Any idea of what it could be? Thanks
