Is your vehicle having a hard time going up hills and/or accelerating when you are getting on the freeway? If so it could be due to a plugged fuel filter. So how much does it cost to replace a fuel filter? It is going to depend on your vehicle. Some Fuel Filters are located inside the fuel tank, some are not. So the best thing to do if you are concerned is to give us a call for an appointment, we will diagnose the issue, to make sure it truly needs a Fuel Filter, and if it does we will be able to tell you exactly how much it is going to cost.