I have a 97 Ram 1500.. What temp should it be running around, mine seems to be slightly over 1/2.. sometimes gos up a bit more maybe 220-230 range? My code reader says i could have a possible faulty water pump.. I bought one im just not sure if i need it, any advice is welcome, the gauge is not marked good enough to tell here exactly what it does say, i cant see anything wrong unless this is getting to high.. 318 engine auto with over drive 4x4..