Q: Fuel pump was replaced but it is still not working.

asked by on

The truck broke down on the side of the road we find out it was the fuel pump we replaced it our selves but the pump still is not coming on.the fuse and relay are good but I'm not sure if there is a fuel shutoff switch or not?if there is where can I find it and if not what should I do next.

My car has 200000 miles.
My car has an automatic transmission.

Hello. If the fuel pump is not coming on, and the fuse and relay are good, then it may be possible that there is a problem with the pump or the fuel pump circuit. The first thing I would do is check to make sure that there is power to the fuel pump circuit, and that the relay is in fact sending power to the pump.

If it is not then there may be some sort of wiring issue before the fuel pump relay, perhaps a wiring issue or other problem with the ignition switch. If it is, I would test to see if there is power to the fuel pump itself. If there isn’t, then there is likely an issue in between the relay and pump. Another thing to consider is a defective fuel pump. Even if the pump is new, it may be possible that it is defective out of the box.

I recommend having a certified mechanic, such as one from YourMechanic, come to your location to determine why the fuel pump is not working and perform any repairs to get your car back in proper working order.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Fuel pump was replaced but it is still not working.

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: Slow speed increase, check engine light on

Hello. If this occurred right after getting gas then you may have gotten contaminated fuel. If it has some water or some diesel in it then this will occur. Some of the time a fuel pump can fail after getting...

Q: Q: P0171

The code P0171 is due to the left bank of the engine running lean and has reached the rich limit for the ECM. Try to have the injectors cleaned and run only high quality fuel that has cleaning additives. This...

Q: Q: Cannot shift into overdrive

On the SC300, when the shifter is in the 3-D position if the shifter is to the right, then the over shift function is enabled. Once the engine reaches a combination of speed and load the transmission will automatically shift...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.