I just bought a 1991 DeVille about a month ago. It has 63,000 miles on it, new mastercylinder, exhaust hanger, and other little things. I have the option to sell it or keep. Are these cars reliable? What problems are these cars known to give? What should I look out for? And what should I keep an eye on?
Thanks.

 

i have 1991 deville. only thing i have had to spend money is tune-up and oil changes. so far i haven't any problems except, just changing the EGR valve and that's it. mine had 73,000 when i got it.

 

My 92' has 179,000k and runs like a champ. fuel pump is the only major problem i had.also my egr valveneeds replaced.but i had found that on 92's the baffles in the gas tank crack and move around and cause problems for the fuel pump. other than that i think its more reliable than the newer ones with the northstar engines.