1997 Plymouth Grand Voyager Van 3.3> Engine runs hot unless I run the heater full blast. I changed the thermostat, new fan relay, new water pump, new serpentine belt, tensior pulley. I just purchased a new radiator because after all of this it still runs hot. I did all this work myself. I purchased the radiator and I drained the radiator and flushed the system so that my new radiator would catch all of the previous bad stuff.

Well after I flushed the radiator I was going to refill the anti-freeze and drive it to work and if it did not run hot I was going to take the radiator that I just purchased back to the parts hub. As I was pouring the anti-freeze in it was running out like a stream. I looked beneath and it was just running out as fast as I could put it in.

I had no leaks at all before I flushed the radiator. I go beneath to see where the leak was and it was dripping way above the water pump, it looked like it was coming from the engine mount bracket, the one that everything is connected to.

What do you think?

Could you have lost a freeze plug?