So I have replaced my thermostat and my electric fan motor on my car, and the radiator is less than a year old. I have the proper coolant level and no leaks. When I drive, it starts out at a low temp, and climbs to 195 F when the thermostat kicks in. Then about 5 - 10 minutes later, the temp starts to climb again. I haven't let it get past 220 F before shutting it off. Should I pull my water pump? Is there anything else it could be?
1990 Firebird V6 3.1L