I have a Stant and I put a small, i believe a 1/16th or smaller, hole in it and my jeep will not stay at temp with the cold weather right now. Its not even that cold here in the northeast, its been 10-20F. If i am not on the highway or climbing a hill where the engine is under constant load, the cabin heater pulls enough heat to cool the engine off while im driving. Its a constant battle between setting the fan too high and cooling off the engine or setting it to low and freezing my a** off
pwrwagn wrote:
I installed one, because mine engine would not warm up unless you were doing 85 up a hill.
I didn't put a hole in it, and I see no need to, because the thermostat system it has ensures that there's water flow past the 90 degree neck and it circulates to the bulb.
Even the very first time, I started the motor after installing it, it simply steadily warmed to just below the midpoint on the gauge and then stayed right there, where it used to wander all over below that, even falling below the normal range while driving at 40-50 mph on the flat, steady.
The heater seriously works, now, too.
i am thinking about sealing the hole on mine or just buying a new one since they are cheap. The only thing is, I was under the impression that it only circulates back through the motor(bypassing the radiator) if the stock thermostat is closed. I thought that it closed off the bypass once it opened up, so if the stock t-stat is stuck open or opening early the water pump would just be trying to force the water to the radiator.