The 1999 Cadillac Seville does not have a timing belt, it has a timing chain.
To install a serpentine belt for a 1995 Cadillac Seville just bypass the compressor and then remove the old one placing the new one in an exact arrangement.
changing serpentine belt and pulley 90' sedan deville
At a dealer... 60 for the belt, about 100 to put it on
Check timing belt.
How Do I change the serpentine belt on a 1989 Cadillac Eldorado ?
on the right side of the engine at the top its on a separate belt
The 1995 Cadillac serpentine belt routing diagram can be obtained from most Cadillac dealerships. Most service manuals will show the routing diagram.
How to replace the belt
There is usually a placard under the hood with a diagram.
It should be right in front of you when you open the hood, on the plasic shroud covering the Radiator and Lights
The diagraim is under the hood. Look harder