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The truck is running good. But It is blowing coolant out of the overflow. It has a new cap so it must be a headgasket. Any other things it could be besides that?
The truck is running good. But It is blowing coolant out of the overflow. It has a new cap so it must be a headgasket. Any other things it could be besides that?
Make sure you get all the air out of the coolant system.
Try warming it up and let it run without the cap on. If it boils over at that point, you may have a head gasket issue.