Starter would work when it wanted to.
Stay away. A total lemon. Car costs a ton to own, and you still won't get your money's worth. Uncomfortable, unreliable! Has turned me off to Cadillac for a long time.
Please be a little more specific about what is wrong with your 'lemon'. Sounds like its just one little thing that is getting you mad. The 96 Deville is one of the most wanted used cars that there is domestic - wise. Northstar engine very sound and this car makes a great buy considering the depreciation it takes.
I just purchased a used 1996 De ville Concourse with about 153,000 miles. When I first purchased this, it wouldn't stay started at the dealership, but when they ran the diagnosis, it game back that the O2 Sensors were bad... they had to replace two of them. On the same note, the service engine light, the ABS light, and the Traction Control lights were on. They told me that they checked it and all was fine. They even reset the lights, but they came back on?? The car sounds and rides perfect, with plenty of power and plenty of braking. About three days later, I sprung a serious fuel leak from under the car... found out the clip on the fuel injector came off, so they had to replace it. I have the vehicle back now, and all is working great... even though the lights are still on. I was also wondering if these vehicles of this year and model are pre-equiped with the key less remote. Mine did not come with a key pad, but would be nice to have. So far only owning this car for a couple of weeks, my mouth is just a tad bit sour. Hopefully the quirks are out and I will have a nice problem free vehicle for at least 12 months, as to when I am wanting to trade in and buy another.