This is a 1998 too by the way
Does the "Service Stability System" message come up? If so, you probably have a leak in one of the shocks. Warning, the 99 Seville STS has electronically controlled suspension and leveling, the rear shocks and front struts are very expensive to replace.
If the speedometer stopped working on a 1990 Cadillac Seville, it could be the fuse or an electrical problem. First check the fuse and if the fuse is good, check with a mechanic.
I have a 1992 cadillac seville. The window won't go up. The window motor is working. I want to see if the glass window itself is off the track. How do I remove the inside panel of the door to get to the glass window?
If all the gauges in the clustor are working and only the speedometer is not, I suspect the Vehicle Speed Sensor which is located in the transaxle. Easy to replace and only about $15. http://www.partstrain.com/ShopByDepartment/Speed_Sensor/CADILLAC/SEVILLE/1999
My 97 had the same issue. The relay box went out and the relays were still good. It should be on the driver side fender wall.
Check for a clogged fuel filter, is the fuel pump working? Did someone trip the fuel relay switch which cuts off current to the fuel pump?
please e-mail me if you found the problem with your dash light i have the same problem , someday it's working some day not ...?????? boutch501@videotrin.ca
I would check to see if the fuel pump is working. Fuel pump is located on the drivers side rear on the frame near the gas tank behind wheel.
When blinker is blinking too fast it usually means one of your turn signal bulbs are burnt out. Check if bulbs are working. If not replace blown bulb.
Why is your 97 cadillac deville instrument cluster not working?
There are many components to an air suspension system and it can be very costly trying to find the problem. When I bought my first car it was a 1990 Cadillac Deville. The thing kept sagging in the rear, over and over. After buying replacement air parts that seamed to keep failing, I bought a conversion kit from Strutmasters. I saved money and time. With all the air parts that could be causing your compressor to not be working, I would say call Strutmasters.
2 diffeernt systems. Power steering system separate from transmission system.