Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.Google+
Car Problem Reports
Cadillac Eldorado Engine Overheating May Cause Cylinder Head to Expand
Cadillac Eldorado Problem
Engine Affected: 4.6L V8
Average Mileage: 115,666 mi (92,000 mi - 150,000 mi)
Visitor, 1998 Cadillac Eldorado, 105,000 mi
Car is overheating. Repair shop says I need to replace headgasket. Cost $2,500 to $3,000.