Oldsmobile/Buick Repair: Where is my fuel filter located?, oldsmobile alero, oxegen sensor

Question
I own a 1999 Oldsmobile Alero 2.4L GLS, I recently performed a tune-up and oil change on this car myself. I have done this many times before and know that I did nothing wrong or broke anything in this process. However ever since this repair my car has been loosing anywhere from 50-60 miles from a tank of gas. My father who is now a retired mechanic knows nothing about cars newer than 1985. So this leaves me stuck trying to find out where my fuel filter goes. The repair book I own didnt even show me where it is located. Then when I went to the auto parts store to buy the filter the only thing they could tell me is either by the gas tank or under the hood. So I figured I would just check with someone who knows.

Thank You

Marie  

Answer
hi marie ,lol well it worked good before you worked on it.now you know how we feel.lol.no marie i am sure you know what you are doing as a mechanics kids have no choice but to learn ,good for you girl.your fuel filter is located under your car right bye the fuel tank mounted to the frame it will be located in the main fuel line going toward the front of car can,t miss it once you get car up.as far as mileage.are you the only driver of the car.have you changed your normal driveing routine lately.have you changed your oxegen sensor recently.are you in a snow belt with lot,s of ice .all of these things will effect mileage.good luck please vote for me write back anytime billymac