Just replaced exhaust donuts and thats not the problem...help

[Z06 FAN]

Coolant in sled is brownish green, I took some out and put it in a clear water bottle and left it over night and it didnt seperate. The oil has no coolant in it. It has a smell like syrop kinda. So i drained it all and am flushing the cooling system. Gonna put all new coolant in and see what happens

 

[CaptCaper]

I have to say I wonder if you flooded the engine.. these can flood easy with temp swings like inside a shop then outside.. it might take a while to clear out.. just a wild thought as it happened to me a few times. Due to odd starting habits when working on it.

 

[Z06 FAN]

Someone said possible Barrs leak in coolant. Possible?? And yes the sled has been in and out of a heated shop a few times.