im having the same problem with my 99. i know the V6 engines have problems with the intake manifold gaskets. only problem is my leak is coming from somewhere by the reservoir as well. check the gaskets and see if it is leaking around them. if not...hop on the troubleshoot train that I've gotten onto. good luck bro, they are great cars. i love mine.
It's probably a head gasket problem.
The low coolant sensor is bad or disconnected.
The coolant is below add in the coolant recovery tank. The engine would not overheat because only the recovery tank is low. It is also possible the low coolant sensor is bad.
Don't confuse engine coolant and air conditioning refrigerant. Engine coolant is Dex cool- Do not use any other kind as the sensors in the system will read differently with the wrong coolant and make incorrect adjustments in your system. Air conditioning refrigerant in your car is R-134a.
Anything is possible if you have enough time and money, but the practical answer would be no.
many possible causes, low coolant, worn out coolant, bad thermostat, no circulation (water pump) radiator blockage, pressure loss somewhere
has the red coolant in a 2005 monte carlo been changed since reports on it deteriorating the head gasket?
Check your coolant level...
If coolant full could be a bad sensor
See a dealer
Under the thermostat
A coolant flush on a 96 Z34 Chevy Monte Carlo helps greatly with increasing the efficiency of the cooling system. It removes buildup and contaminants from the system.