Several things have gone wrong with the car, but they were all addressed at once.
I have replaced the starter.
solenoid
Ground wire.
Rebuilt the carburetor.
New tires.
Wheel alignment.
New brake pads.
New brake lines.
New master cylinder.
New belts.
New battery.
New rubber hoses.
New air intake filter.
All new windows and I mean all.
New drive shaft.
New transmission.
And a few oil changes.
This is the most luxurious, reliable, smooth rideing, driving car of all time.
When I first got the car I paid a 1,000 for it, and it was worth it for the body condition, min. scratches, no dents.
The car went under a mechanical restoration. after Blowing about $800.00 on fixing it up and I did all the mechanics my self at one time.
The car has had no problems with it what so ever after I replaced all that.
The car is now in almost mint condition and I drive it every day.
I know what you mean about fixing it all at one time. I owned a 1973 Coup DeVille and traded it for a 1978 Mark V. The Lincoln was not running. Since my Cadillac was my only daily driver, I had three days to turn my "new" Mark V from lawn ornament to reliable good running car.
I did the following; complete brake and power steering overhaul, new carburetor, fuel pump and tank cleaning, thermostat, water pump, timing chain, distributor, valve cover and intake gaskets, lifters, all four shocks, front and rear bushings and suspension gromets.
Then on Monday when I got to my shop (I am a technician for a Hyundai dealership) I put on new tires and aligned the vehicle. I later did a trans filter replacement and overhauled the A/C system. I have a mechanically brand new car.
I recently removed the heads and cam from a 1971 460 and bolted them on my engine(better compression in 71) and put a 750 CFM Holley carburetor.
I love my Mark V. Luckily the car had been repainted about 5 years ago by someone who knew how to do it right. So my car looks and drives like it did in 1978, only a wee bit faster I think...