I just purchased a 1995 Cadillac Seville STS. The speedometer mostly does not work. About 95% of the time, it does not work. Additionally, the trip function as well as the odometer seem to not work. Occasionally, the speedometer will work for a few seconds here and there while driving. At first, I thought it worked with I accelerated heavily; but that was just an unfounded impression. Anyway, during those times, it seems that the odometer and the trip work.
Can someone suggest what things I need to check that might be the source of this problem?
Any suggestions would be welcome.
Thanks in advance,