Have spent the last 9 hours putting in a new radiator and water pump. Did everything by the diy. Turned car on and it seemed normal at first then it started to overheat. Please help no money to take it to mechanic. It was leaking tranny oil from the tran cooler line when i was putting the radiator. I followed both diys for both installations. Put new anti freeze. My car wasnt overheating this fast before this.