So I was checking the coolant level in my mother's 2000 Lumina, and when I opened the coolant resevoir, I noticed that all of the coolant looked like mud, the level was low, and there was nasty residue all over the inside of the tank. This car only has about 50,000 miles on it, and the engine runs great (the temperature needle is a bit below middle, almost low, even with the "mud" running through it...). I was thinking the best thing to do is to flush the entire coolant system, and was hoping someone had any suggestions as to the best way to do this. I don't know the car very well, and can't see any drainage plugs on the radiator or block. Is it necessary to detach one of the radiator hoses to drain the system, and then repeatedly cycle fresh water through the system to flush out the coolant in the block? Also, what could cause this on a car this new? (2000 is new for me...
). Any suggestions would be great
Ephram