What causes a GM V8 engine to leak coolant?
What causes a GM V8 engine to leak coolant? Knowing where to look helps and often a cracked cylinder head is the source of the problem. Between 2001 and 2006 GM manufactured millions of engines, many with defective cylinder heads castings. The cylinder head castings are weak in the area where the head bolts pass through. What happens when coolant goes out in a GM Truck? Still trying to find the answer but have recently found an article illustrating the problem. If your General Motors SUV or truck is losing coolant, with no visible signs of a leak, the source...