Skip the auto shop - Our mechanics make house calls

Q: Fuel pump relay and fuse

asked by on

I have a 1994 f150 straight 6 and my fuse for my fuel pump keeps blowing and so does my relay. I've tried replacing both of them and they blew about a week later again. Any help?

My car has 120000 miles.

A: If the fuel pump and relay keep blowing, th...

If the fuel pump and relay keep blowing, then the most likely cause of this is the fuel pump drawing too many amps and needing to be replaced. The pump drawing too many amps can overheat the circuit and cause the relay and fuse to overheat and blow. Have the fuel pump replaced and check the fuel pump connector for any heat related damage and replace that if needed as well. You’ll need to make sure the connector is in good shape or it can cause the overheating.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Get a quote

What others are asking

Q: Car not turning over

Hi, an engine requires spark, fuel, and compression in order to run by itself. Since the engine is cranking the issue is most likely due to the engine missing of these components. Over time the parts that supply the engine...

Q: Throttle position sensor - loose connection? 2012 Ford Fusion

Hello - yes, it is possible that the electrical connector for the throttle position sensor has a loose or poor connection. It is more likely that the throttle position sensor is failing. It has redundant circuitry, which accounts for some...

Q: Truck runs smoothly with no misfires but CEL is on and bank 1 is running too lean.

Hi there. The P0171 code singles out bank 1; the airflow meter feeds both banks and if it was at fault you would codes for bank 1 and bank 2. Congrats on not breaking any of the spark plugs and...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.