i wouldn't say there is a temp that is too low for your engine to run. the cooler it runs the less heat your heater will be able to put out though. if it is running cooler than normal your thermostat may be stuck open, which will give you trouble in warmer temps.
In a Chevy Lumina, low coolant means that the car needs more anti-freeze/coolant added. This is needed to keep the engine from getting too hot
This is called the Temperature light or gauge
Check your coolant level. If its too low the sensor won't read the temperature of your coolant.
Sounds like your coolant is low or your coolant level sensor could be sticking closed after the coolant was low. with the dexcool coolant it becomes thick and cause the sensor to stick closed.
nope. at least not on a 93, and others that have a similar resevoir- its a low coolant level float switch The coolant light blinks when the level is too low and/or there is insufficient cooling. If the level is fine and the car is not overheating (the cooling fan is turning on, the oil temp is okay, etc.), the gauge temperature sender may be faulty.
fan not working or coolant level too low or fins on radiator loose
Either your engine coolant temperature is too high , your oil pressure too low , or your gas gauge is near or at empty
Either your engine coolant temperature is too hot , your engine oil pressure is too low , or your gas gauge is at or near empty
The annealing temperature may be too low for this experiment.
I've heard that it blinks when coolant is low and stays on when coolant is too hot.
Either your gas tank is at or near empty , your oil pressure is too low , or your engine coolant temperature is too high
because your coolant level is too low. put some antifreeze in it......