Whenever we check the AST, it is full to the top. I'm glad we aren't losing coolant, but should it be that full or is it an indication that coolant isn't flowing to the overflow tank?

AST is from Fighter's Garage.

Regular coolant filler has a 16# cap

thanks for any input

 

Y'mean when the car's cold? I've never checked.

If I don't hear the babbling brook behind my dash when I fire the car up, then I figure everything's OK.

 

yes, it should be at the top.


John

 

I filled my Fighter's AST to the top and it stays that way. After checking the AST I check the level in the fillerneck and add coolant there if needed. After that I check the coolant overflow which as roughly halfway between min. and max.