Nissan Altima 1999 (engine heats)

Hello, I am new in the forum and I offer my greetings and respect for all without eccept, from Miami the capital of the Sun. My question is as follows: I have an Altima 1999 GXS Motor 4.2 and I need to change the traces to the engine: Is there any manual that tells me how to do the job and what tools do I need for it? Thanks in advance for your answer ........... Zolotino