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elmangle · 08-14-2019, 07:05 PM

Thanks, everyone. All good advice, but I have to think the bubbles in the coolant indicate a crack somewhere. The radiator seems to be fine, in fact I believe it was recored just before I bought the truck, about 500 miles ago. Temperature readings on the surface show no cold spots and the variance between top and bottom is good. I can't guarantee there's absolutely zero coolant loss, but it's certainly negligible. I guess my plan now is to see if there's any sand or scale in the water jacket, clean it out best I know if so, and put it back together and run it. As long as I'm not climbing mountains, it won't boil over.

08-14-2019, 07:05 PM	#9
elmangle Member Join Date: Aug 2016 Posts: 62	Re: Elusive Block Crack? Thanks, everyone. All good advice, but I have to think the bubbles in the coolant indicate a crack somewhere. The radiator seems to be fine, in fact I believe it was recored just before I bought the truck, about 500 miles ago. Temperature readings on the surface show no cold spots and the variance between top and bottom is good. I can't guarantee there's absolutely zero coolant loss, but it's certainly negligible. I guess my plan now is to see if there's any sand or scale in the water jacket, clean it out best I know if so, and put it back together and run it. As long as I'm not climbing mountains, it won't boil over.