I have a 1999 Nissan Pathfinder. I'm having a problem with it running hot. If I drive somewhere within 15 miles, it runs at normal temp, but it seems like whenever I drive further it runs hot. My brother says there's no pressure in the cooling system. I bought a new radiator cap, and we vacuumed the radiator out thinking there may be an air pocket. Neither have worked. I bought a thermostat for the car, but I don't want to put it on if it's not the problem. I've also noticed a crack in one of the air intake tubes. Was wondering if that could be the problem. Any help would be appreciated.
Car is running hot. on 1999 Nissan Pathfinder
it could be a number of things but I would pressure test the cooling system for leaks ,then replace the t -stat and go from there. !!!