200 degrees to 220 degrees
180-220
The 2000 Chevy Corvette normal operating coolant temperature is 195 degrees. You can install thermostats that will allow the coolant temperature to only run at 180 degrees.
Approx 200 deg F
The thermostat is a 195 deg F. Normal range is 190-215.
Any Auto Parts store can tell you the correct temperature thermostat for your Impala. Probably it requires a 195 degree thermostat. One thing for sure is no thermostat is not what you want. Running without a thermostat, will cause the engine to not reach full operating temperature. The engine will not perform to peak efficiency at below normal operating temperature. Normally that is around 220-230 Degrees. Your engine is computer controlled and the computer bases fuel/air mixture and timing on the engine temperature. Install the correct thermostat.
If only when cold - normal condensation burning off If when at normal operating temperature - could be head gasket leaking Water in oil? Oil in water? With engine at normal operating temperature remove oil dipstick and let a drop fall on a hot part of engine - oil will smoke and water will sizzle
Open drain plug at lower end of radiator Run engine to Normal operating temperature with heater on -no higher When draining stops -- close drain plug Refill radiator slowly to prevent system from becoming "airbound" Start vehicle - bring up to normal operating temperature with heater and re-check coolant level
Around 220 degrees.
My 98 constantly runs between 190 and 210 degrees, according to the temp gauge. I would assume the normal operating temperature would be 190-210 if this is the case, and since Chrysler didn't really dork with the specs of the 4.0L too much, I would bet that it remained the same up until the end of the straight 6.
Drain radiator RE-fill slowly to prevent and "air lock" Run vehicle to normal operating temperature with heater on Check coolant level
I had a problem with stalling with a 2000 Impala, and it was the oxygen sensor.
If the temperature gauge is moving a lot while you're driving it could be a sticking thermostat. Its probably a good idea to replace it. You should check with the operators manual to find the right temperature, but your local auto parts retailer can help you with that and they're generally quite accurate. Normal thermostats are either 185 or 195, but in either case once the car gets up to operating temperature it shouldn't vary.