The fact of the matter is that fixing a fuel pump will not be possible for most car owners. While fuel pumps, even bad ones, are pretty complex and not all that serviceable (the pump in this case can be swapped out but there's nothing else to do except replace). A new fuel pump will cost between $100 and $500 (including labor) to install.
When a fuel pump fails, the first thing we notice is low or no pressure with the obvious lack of engine performance. For example, if the fuel pump stops working it might not be able to deliver enough fuel which would result in loss of power at highway speeds and worse mileage. According to a study by the National Institute for Automotive Service Excellence (ASE.), 60% of fuel pump issues are the result of internal wear that cannot be adequately repaired.
Bosch and Delphi are a couple of the manufacturers who advise replacing fuel pumps, not servicing them. Bosch has noted that their pumps are built with highquality parts and can last up to 100,000 miles — which is pretty good; they also do not perform any repair on them. Rather, it is recommended to replace and rotate them for best performance.
Additional individual components of the fuel pump system, like say only replacing or repairing the fuel filter (or relay) may be necessary in some cases. Unfortunately, those are usually cheaper and simpler parts versus the fuel pump directly. For example, getting a fix for fuel filter will still cost you around $ 50 to $ 150 and so an aftermarket would be way excessive compared with doing the this work yourself.
What automotive expert Mary Johnson explains is that, "the complexity and precision of fuel pumps mean they are more likely to require replacement than repair. Most modern pumps are built to go lots of miles these days, but once they do start to wear out it's usually just as cost-effective (and certainly easier!) to replace them.
If you want more information on fuel pump replacements and what it will cost, read about Fuel Pump.