As with other engine troubles, a logical process can help you locate the cause of the defective fuel pump fuse and fix it properly. Blown fuses account for about 10% of fuel system failures, the National Highway Traffic Safety Administration says. The first step in changing a blown fuse is to open up your fuse box, which you can find under the dashboard or in the engine bay of your car. Locate the fuse for the fuel pump in your owners manual and pull it, which should be a 15 or 20 amp fuse.
Then check the fuse visually for any visual clue, e.g., broken filament, discolor places etc. The circuit is interrupted by a blown fuse that will stop anymore power from getting to the fuel pump. For a good fuse, check for continuity using the multimeter. This device helps to determine if there is electrical current through a fuse — if there continuity, you have blown a fuse. Auto technicians will also suggest replacing a new fuse identical to the blown-out one to prevent any potential electrical problems.
If the circuit blows again after you replace the fuse, then it could mean serious problems. Most often this is a symptom of a short circuit in the wiring or a fuel pump that is on its way out. A bad pump will pull too much amperage and blow the fuse out time and time again. As automotive technician John Smith explains, “You must find the cause of a blown fuse—or you will continue to experience repeated failures.”
There are instances when you have a problem turning on your car or suspect that it is becoming slow to start, most likely the reason why would be traced back to a damaged fuel pump fuse. It should be between 12 volts, gasoline pump must run on his own working voltage range. If the fuse keeps failing, then more inspection is required to check the condition of fuel pump.
If you still are unable to tell what the problem is, take it to your nearby professional mechanic for further inspection. This allows them to test the fuel pump and any related wiring to provide you with a fix you can count on. Visit Fuel Pump to browse the top brands in the business for dependable fuel pump solutions.