What are the first steps to take to replace an engine and the how do I do this on 1990 Geo Prizm

would like to know the steps to take to replace a the engine

Asked by for the 1990 Geo Prizm
It's a big job and requires a hoist to get the engine out, not something to be done at home especially if you have never done this before or have a good assortment of hand tools. Alldata is probably the best source for information. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
Autozone have some popular workshop manuals for free on line once you register (for free) on their website
and get an online repair manual subscription.