I've replaced thermostat, rad cap, water pump. And it still overheats.
If I just let the car idle it doesn't overheat coolant will flow the fan will go on it seems to work fine. Then I started driving it up and down my laneway it was good for a while then my hood started smoking and then it started overheating. I popped the hood and there was coolant everywhere and the reservoir cap was off and it was full right to the top. I parked the car took out the coolant in the reservoir and left it half way min and full line. I put all the overflowed coolant back into the system through the thermo housing. Ran the car again it worked fine at idle then I started reving it. Then the reservior started started filling up and it eventually started overflowing again then overheading. So all the coolant is going into the reservoir and not going back into the engine. Can someone help me out and tell me why this is happening and how to fix it.
Thanks.