Sounds like it might be a problem with the previous owner(s) rather than the vehicle itself.
I have a1990 Suburban that was owned by a surveying company and had
87,000+ miles on it when I bought it in 1997. I have replaced the radiator, water pump, TBI and alternator. The tranny and engine are original and have never been touched. There have been some minor repairs but overall, it's been an excellent vehicle. I hope to keep driving it for another 15 years (it currently has 172,000+ miles).****************************************** I would rather be exposed to the inconveninces attending too much liberty than to those attending too small a degree of it. ~ Thomas Jefferson ~