It isn't so much "HARD" as it is time consuming.
The oil pump on the 4 cylinder Saturn engine is integrated into the front housing which is also the timing chain cover.
To remove the timing chain cover it's generally considered to be easier if you remove the engine, then pull the dampener pulley and the valve cover to get to the timing chain cover.
It isn't really a difficult thing to do, but it is time consuming.
Yes
lease gas cap on 2000 sl1
Need instructions on how to replace a manual window regulator on drivers side on 1995 saturn
First remove the fuel tank then remove the pump assembly locking ring then remove the pump assembly.
How can I replace the headlamp on a 2000 Saturn SL1
The water pump on a 94 Saturn S1 is replaced by removing the serpentine belt, engine accessories, and water hoses. The pump can then be unbolted from the engine block and a new pump put in place.
Almost all electronic injected vehicle manufacturers put the fuel pump inside the fuel tank. Saturn manufacturers were not among the exceptions.
In the tank.
R-134A
timing for spark plug wires for saturn sl1 1996
My son's 1999 Salvaged/total Saturn SL1 was rebuilt using many engine and body parts from 1995-1999 Saturn SL1 and SL2 cars, I believe it will work fine. I do not recommend before 1995 or 2000 or later models. I do not recommend SL2 either. I am not the expert but most of my son's engine is not 1999 SL1. Good luck!
The thermostat on a 1995 Saturn SL1 is located on top of the motor. The largest hose coming off the radiator will have to be loosened to access the thermostat housing on the motor.