There are a few possibilities 1) your resivoir tank is cracked and leaking 2) your sending unit is covered in gunk or corroded 3) your sending unit is defective and needs replacing 4) you are leaking coolant from somewhere (bad hose, bad gasket, bad joint, etc)
Water is an acceptable quick fix, and tap water is fine (that is what you flush it out with). Once your problem is sufficiently solved, I would recommend a complete drain/flush/refill of your radiator with the proper mixture of coolant.
With the 5th generation Monte Carlos, when the overflow tank is emptied, and it kicks the sensor on, after you fill it up, the sensor may not reset or turn off and GM had problems with those sensors and they normally had to be replaced. It sounds like a bad coolant level sensor to me.
How many 3s in 313433535333?
What is 8.275 rounded to the nearest ounce?
How many zeros is in a ton?
What teaches without talking?
What number is halfway between 5.3 and 5.4?
When Beowulf confronts Grendel what is Grendel suprised about?
Which of the following is not a sustainable form or energy production?
Where is the origin of the Panama hat?
Have you ever crashed a wedding or had your wedding crashed, if so what happened?
How many times did Joe Biden run for president?
What is the world’s oldest soft drink?
How many novels did Charles Dickens write?
What do the colors on America's flag mean?
How did Harry Houdini come up with his stage name?
What is modal fabric?
What helps you manage folders stored in various locations on a computer or divce?
Accountancy is necessary while auditing is a luxury comment?
Why does William Gaminara limp?
What are advantages and disadvantages of micro planning?
BA-28 which is a recommended water-skiing safety practice?
What is the explanation for full purse makes the mouth to speak?
What is two thirds of 5000?