ok let me start from the begining, temp gauge went up 3 qaurters of the way , so i check coolant , all still up to leavel , i beed it out with a funal , still doing it , took out thermostate, change cts under dizzy, bleed system agine for air bubbles, ok heres is whats funny only does it every 3 or 4 days and no coolant lost . could it be a water pump ......... any 1 got any ideals lmk, oh and you can park it and let it cool off a few min and then its fine for a few days