Engine Cooling problem
1991 Nissan Pathfinder 6 cyl Four Wheel Drive Automatic 110000 miles
The coolant temp guarge reads hot it takes a little bit of time while it is idling. I have replace the sensor as well as the thermostat. What could be the problem, it does not overheat when it is being driven around town. But I would like to take it on a long trip here soon.