Cadillac Repair: water pump, electrical schematics, cadillac sts

Question
how hard is it  to change a water pump on a 1999 cadillac sts

Answer
Not to difficult. You will need, If necessary, Electrical schematics and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture.  I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.