Report: 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)
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.
Visitor, 1998 Cadillac Eldorado, 105,000 mi
Car is overheating. Repair shop says I need to replace headgasket. Cost $2,500 to $3,000.