Okay so earlier, I went to go test out my water pump and all on my 66 mustang 302. And I got it up to normal operating temp, and had the rad cap off. I gave it some gas, the coolant level didn't go down, instead it came out the rad pretty badly. I've been having overheating problems, and I have no leaks, i just replaced the thermostat a few days ago, it didn't help. I haven't seen any leaks around the weep hole on the water pump, or noises. Other than a belt that does need to be tightened a bit, you can hear the belt squeling a tiny bit. So do yall think it could be my water pump?
if it,s circulating then the pump is working. when the water goes down when you give it gas then the pump is drawing it down.
there are several problems that can cause this one is a stoped up radiator or a lower radiator hose thats soft
if at an idle you see coolant flowing in the radiator, the pump is ok... More info is needed here really, assuming you don't ever have to add coolant though... I'd flush the system... if you do add coolant and find no leaks around the engine (weep hole, hoses, freeze plug) check the passenger side floorboard for moisture, the heater core may be shot...
ok so the termostat replace no leaks and its overheating check the fan hub is it ok if yes then replace the radiator i dont think your head gaskets are blown because water came up when temp was hot an you reved up the engine however if water had came out when water was cold or warm the i say the head gaskets were blown hope this helps
