The obvious answer is to read the owner's manual. That said, you do not
indicate how the vehicle is currently performing or when any previous
preventive maintenance was performed. So generically, at the minimum
(assuming you are referring to mechanical maintenance as opposed to physical
body aesthetics), I would:
Check all fluid levels and condition of each (Oil, Trans, PS, Brake, WW,
etc.)
Change Engine Oil & Filter
Change Transmission Fluid & Filter (Assumes Automatic) Also consider
performing the "Reverse Slam Cure" Procedure when changing the ATF
Replace and Gap Spark Plugs
Replace Ignition Wires
Clean Ignition Coil Towers
Replace Air Filter
Replace Fuel Filter
Replace PCV Valve
Replace all Rubber Belts
Replace all Rubber Coolant/Heater Hoses
Drain, Flush, and Replace Engine Coolant/Antifreeze/Distilled Water (Every 2
Years, Follow all Saturn Recommendations, including 2 sealing pellets)
Bleed all 4 Wheel Brakes (Old Fluid Flushed)
Inspect and Clean Battery Posts and Replace Battery (if over 5 Years old)
Check Brake Material and Disks/Drums on all Wheels
Check Tire Tread Depth & Replace if Needed
Check Pressure on all 4 Tires and the spare too!
Inspect Exhaust System for Leaks/Holes/Rust
Inspect Engine and Trans for Major Leakage from Gaskets/Seals
Verify proper CTS, EGR, and O2 Sensor Operation (all known issues for
vehicles of this age/mileage)
Verify that the horn and all turn signals, brake lights, headlights operate
properly
Verify that wipers and washers work properly
Replace wiper blades if needed
Check All Shocks and Replace if Needed
Clean Fuel System/Injectors using Dupont Techron Additive
Others will likely add additional things you should check/replace, but these
are what come to mind if I were acquiring a vehicle of this age and with the
stated mileage. Good luck.
Bob
