On some cars you have to replace the whole headlight, but in a lot of cars you replace just the bulb. At the back of the headlight, see if you can twist out the bulb socket. You may depress it while twisting it counterclockwise.
I am prettysure you can change the motor as long as the body structure is the same and you have skill in this sort of thing.
http://www.youtube.com/watch?v=iogtiYraHCg richpin
How do I replace the water pump in my 1994 Saturn SL2 series standard twin cam.
yes
As far as I know, the horn is behind the driver's side headlight.
The Saturn sl2 does not have a timing belt, it has a timing chain. And under most conditions it does not need replacing.
There is not any adjustments to be made on alternators.
1-3-4-2
The 4 cylinder Saturn's all had timing chains.
120 new, probly less now
1993 Saturn sl2
Are you asking how to??