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 Seville STS Engine Overheating May Cause Cylinder Head to Expand
Cadillac Seville STS Problem
Average Mileage: 107,240 mi (10,600 mi - 189,000 mi)
the car ran hot sense new gm did nothing and the car used oil also they are scammers they defrauded the public with the sts Seville it junk now hve 108 k on itbad heads it always used antifreeze and now I need engine gm is responcable for this and need a class action law suit
Visitor, 1998 Cadillac Seville STS, 102,000 mi
not fixed yet
Visitor, 1999 Cadillac Seville STS, 89,900 mi
Blown head gasket...don't buy a Cadillac. My Lexus and Nissan products have over 300,000 miles on them.
JUST BOUGHT THE CAR TODAY AND TONIGHT ENGINE HOT A/C OFF POPS ON. ENGINE GOT VERY HOT. TAKING IT IN TOMORROW. PAID 5700.FOR THE CAR TODAY :(
Visitor, 1999 Cadillac Seville STS, 189,000 mi
although coolant level is correct, changed thermostat, water is flowing through engine, water pump fine, and cooling fans work correctly. ive been told its a leaky head gasket
Visitor, 2000 Cadillac Seville STS, 98,000 mi
Overflow from coolant fill cap due to exaust leak into cooling system. Had all gaskets replace.