Had Problem with the idle speed control. After I bought the car. It was making the engine rev a little high. Bought a new one. $45. Fuel Pump went out at about 125000 miles $200 to repair. Front Seats are worn and cracked. Back seat still look brand new. Just replaced all shocks at 130000 miles. It ride like a brand new car. Head liner is sagging like all GM cars. 130000 miles the air compressor for the rear leveling system blew up.
I love this car. It rides like a champ. Sucks a lot of gas. Maybe 13 or 14 mpg in the city. Wish Cadillac put sunroofs on all there cars.
When you replaced the throttle did it fix the problem.