Cadillac Repair: 1996 Seville Evaporator replacement, evaporator, test procedures

Question
What is the best and easiest way to replace the evaporator on a 1996 Seville.  Is it necessary to 'pull' the engine?

Answer
You will need, If necessary, Electrical schematics, Test procedures 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.