My 1991 deville is running great again. One question...My anti-lock light comes on each time I drive and stays illuminated. My brakes work great but I do believe the anti-lock feature may be disabled some how? By a faulty sensor? Any Help would be appreciated. The Fuse is OK for Anti lock System.
Berger

Usually it is a wheel speed sensor gone bad. It was in my case on a '92. Do a continuity test on all 4 wheel speed sensors.

Just returned from Vacation. Thanks Ranger. Need help locating wheel speed sensors.

They are in the hub & bearing assembly. The plug is on the inboard side of the hub.

I had the same problem with mine and wound up replacing both of the relays for the ABS under the hood. Never had a problem since!

Without a scanner to give you a proper code will have you replacing parts t'il you're broke. Pay 60.00-110.00 to have it scanned and get the fault code b4 replacing anything. Or live without anti locks.
Just because your neighbor replaced a wheel sensor on his right front and your wife's car had a right rear go bad, doesn't mean this is the same for your car.

You can buy a subscription to alldata and get a detailed wiring diagram and learn how to test circuitry and play process of elimination, time consuming but effective.

http://img216.imageshack.us/img216/6735/image1zf3.th.jpg (http://img216.imageshack.us/my.php?image=image1zf3.jpg)