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Northstar engine bad design
By johnr24 on
Vehicle1999 Cadillac Seville STS 4dr Sedan
ReviewThe Northstar engine until about 2002 had lugbolts that were too short. So it blows a headgasket climbing hills. $3500 to repair with new longer bolts. No old high mileage Northstars ,only dead ones. Engine not considered rebuildable. A Cadillac engine design mistake (30 yr Cad owner)
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