2000 Dodge Neon

Engine Mechanical problem
2000 Dodge Neon 4 cyl Front Wheel Drive Automatic 97000 miles

So my 2000 dodge neon oil light has been coming on and everytime it did I put a quart or a little less of oil in it. I have been keeping a close eye on it and today it started making a funny noise like clicking I asked my dad to look at it and he told me that he thinks that I blew a piston or that I ruined a rod in the engine, how do I fix this and around how much would it cost?
July 2, 2010.

Check the oil pressure with a mechanical gauge, if normal replace the oil pressure switch. If abnormal could mean oil pump/ engine bearing-clicking/ticking/tapping valvetrain problem-thumping/thudding lower end of engine-

Cost of repairs varies with location

Jul 3, 2010.