Used 1999 Cadillac Seville Consumer Reviews
Northstar engine bad design
The 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)
Thinking of buying 1? Research gaskets
Worst motor ever. I've spent over 5k at the dealer and now it needed a new engine.
engine breaks fast
owned the car 3 years had engine rebuilt ($5k at 50K miles), followed 2 years later by a cracked casing which was going to cost another 2k. this car is a money pit. avoid at all ALL costs.
10 years running
I bought mine new in 1999. 10 years later it's still going strong. 142,000 miles on it now. It had a few issues in the first 50,000 miles, all of which were covered under warranty, a leak in the trunk, the seat heater broke and a leak in the sun roof. right now the only issue is it needs a quart of oil between oil changes and the ABS needs repair.
High Miles
I got my STS when it had 95,000 miles on it. I paid $9,500 and it was in great condition. I had some concerns about it breaking down and being expensive to repair. I put 20,000 miles on it this year and I have only had small problem. It needed new spark plugs and wires at 10,500 and a new water pump at 114,000. I had a small problem with the heater core getting clogged up, but I used some cleaner and it was fine. I keep blowing the speakers listening in music very loud, but I replace this with great after market speakers. It rides great and performs wonderfully. I rough idea and oil burning is to be expected. O love this car and I paid pocket change for it. Everyone thinks I spent $30,000