I have a 3.4 l V6 GM motor in a 2002 Monte Carlo originally every so often there would be a overheating problem then one day it just took off to 260 I instantly shut the car down and let it sit for a good 45 minutes for it to cool now ever since then I cannot keep water in my radiator I have replaced the water pump I have replaced the thermostat I pulled all my plugs out and I'll look normal I have no water in my oil nor do I have water or white smoke out of my tailpipe I see no water leakage whatsoever I can go crank the car and within 10 minutes of it sitting there idling the temperature will rise pretty much up to 260 I wait for the car to cool before I open the radiator cap and I have to fill my radiator back up every time as a last resort maybe thinking I have a cracked head slight crack even I used liquid glass followed all directions to a T and am still losing all my water as well as my car overheating what is my problem can anybody help
My car has 165000 miles.
My car has an automatic transmission.
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