Returning to the primary cause of an engine block cracking, overheating. Consider your water pump, which is in charge of circulating coolant through the block to keep it from getting too hot. Signs your water pump is failing include leaking coolant, a whining sound coming from under the hood, or steam coming from your radiator. Most tend to last between 30,000 to 100,000 miles. So, if you’ve never had an issue with yours and it’s in this range, it might be time to get it inspected. [links]