The water pump went out approximately 6 months after I bought her. This, I originally attributed to the fact that she sat for 10 years, from 94-04 before I bought her. I am now learning that this is a VERY common problem with the 4100. Also, the distributor went out about a week after purchase, once again, most likely due to the long period of time she sat in a storage unit. The cruise control is broken, and the speedo is out of whacc due to the oversize tires the previous owner put on the rear. Also, the interior trim on the passenger c pillar is loose. Aside from that, this car has been a dream.
This car is one of the finest luxobarges GM ever put out. She drinks gas like nothing else, and won't even get out of her own way, but I love her. This car floats down the road, and has a style that can still not be touched by anything.
I found this car in Autotrader for 2800. I didn't call on it, because I was afraid it had already sold. 3 weeks later I was still seeing it, and got the balls to call on her. She was still available. Naturally, I immediately dropped what I was doing and drove out to take a look. Obviously I bought her, and started triccing her out. I put in a JVC head unit, 2 MTX 12 inch subs, and a Legacy 1000 watt amp. I also put a set of 15 inch Chrome Daytons on her, with whitewalls, of course. The hydraulics are coming soon, as is a new paint job, since the guy who painted the trunk lids must have been drunk or something. The dark brown leather is still immaculate, and aside from the cruise control, everything works.
Watch out for that 4.1L V8. Seems like most people on here have had not very good luck with it, but a few have. Watch for coolant/oil leaking into each other, blown head gaskets.