Q: After giving another car a jump, what could cause the fuel pump fuse to keep blowing when the car is cranked?

asked by on August 10, 2017

After giving a car a jump, my car ran fine for awhile. Then, out of no where, I was driving home and the car just quit. I replaced the Fuel Pump Relay. When I turn the ignition on, I can't hear the Fuel Pump prime. Also, The Fuel Pump fuse located on the side of the dashboard Keeps blowing when the ignition is turned on. What is short circuiting to make the fuse keep blowing?
My car has an automatic transmission.

The most likely cause of the fuel pump fuse to blow is the fuel pump is drawing too many amps or you have the incorrect size fuse in the fuse socket. If correct fuse is in socket then disconnect fuel pump connection and see if fuse still blows? If it does not blow then replace the pump and filter.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Shaking noise when the truck idles, worse when it first starts
(Answer assuming it is a 5.4 Triton Engine) This complaint is one of the most common I have heard over and over again for the Ford F-series trucks with the 5.4 Triton engine and covers many other years besides just...
Headlights not turning on
If both headlamps are not working and the bulbs are in good condition, I suspect the head lamp switch is faulty. The head lamp switch on your vehicle houses several other functions like the turn signals and the cruise control...
Car running hot
The coolant may not be leaking, but fumes from the overflow can be smelled when it is running hot. Your vehicle should be checked to see if the fans are working, and the thermostat is okay. A pressure test for...
2012 equinox reduced power light engine light and traction light came on. Lost a lot of power got home and all light except engine
Your car has what is called a "safe mode" that will be engaged by the computer when it detects that something critical has gone wrong related to any of the major components in your engine chassis or power train. This...
Have a 2004 mercury Monterey and it came up with a message on the display saying fuel comp data error
Hello, thank you for writing in. The vehicle will give this warning light when the computer has detected there is an issue with the fuel system. It may mean there is an electrical issue, mechanical issue, or sensor/compilation issue. The...
Struggles to stay running when I start it and only last about 15 seconds
There are many possible malfunctions that can cause a engine to stall (https://www.yourmechanic.com/services/car-is-stalling-inspection). As long as the engine is in good mechanical condition, it comes down to the engine getting the correct air/fuel supply, a sufficient ignition to fire the...
Engine noise
There is a few tests that should be done for the engine noise and the first is to find out what cylinder is not working and doing a compression test to see if the noise is a stuck open valve...

Related articles

Why Fuel Pump Replacements Can Be Tricky
Changing the fuel pump can be challenging, as you may first need to remove the fuel tank and other parts in the car to reach the pump.
How to Replace a Fuel Pump Shut Off Switch
The fuel pump shut off switch may be faulty when the Check Engine Light comes on or if the engine suddenly turns off while driving.
How to Get the Best Fuel Mileage For Your Car
Fuel economy can be increased if you perform regular car maintenance, pay attention to the Check Engine Light, and reduce your idling time.