Quote:
Originally Posted by pilut2
In summary my questions are:
1) Is it normal for the coolant to go from min to way over max in the overflow tank when car it at operating temp?
2) Is it normal that the pressure relief valve is in the open position when hot?
Thanks!
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To just stick to answering these 2 questions, yes, the coolant level will go up and down, the more air in the system the bigger the variance.
Yup, the little valve with the wire on top is allowing circulation when hot to move air from the system to the tank. If you park the car on a decent slope, nose down with the wire bail lifted to open the valve and let it idle, the air should migrate to the tank over time. If you can shut her down and leave it that way overnight, you should work the air out of the kinks and pockets.
A consistent burping of coolant can indicate a head gasket or other issues. Check the oil for water mix and you can have the air in the coolant system measured for combustion gasses.
Good luck!!
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