I have a 1999 Chevy Cavalier, automatic. Dieing to do a tuneup. Have already replaced the plugs and wires. Done an oil change and replaced the air filter, and belt... But I don't know what else to do. Does anyone know where the fuel filter is located and what side of the car I should jack up to get to it? Also where the PCV valve is located and how to find it? I know I need to do these things still. What is the difficulty doing it on this vehicle? What else should I do while I am at it. Car is at 100,000 miles and I am trying to keep it running strong. Any suggestions help.