[vzSvx]

I just filled up my gas tank last night on my way home, and today I drove for about 28 miles and my fuel gauge was showing EMPTY. The red needle was all the way down. I turned off the AC and it went back up to only a quarter mark. I shouldn't have used that much gas already. I don't understand what's going on. It's been acting strange during these past 2 weeks. Everytime I fill up, the needle stays only at the 3/4 mark. It doesn't go all the way up to F mark. Do you think the Fuel Gauge needs to be replaced? Can any mechanic do it? I appreciate any infos or if there is any previous thread on this kind of problem, please help...