Skip the auto shop - Our mechanics make house calls

Q: Car won't start even after I replaced the fuel pump.

asked by on

Car won't start and turned off while driving. Replaced the fuel pump and I can hear it working. The car still won't start.

If the fuel pump has been replaced and your issue is still fuel related you may have a clogged fuel filter or malfunctioning fuel injectors. If all of these parts are known to be functioning properly the issue is likely not fuel related. Another possible cause of the vehicle dying while driving and not being able to start again is a faulty alternator. The alternator’s job is to charge the battery so the vehicle can be started again. If the alternator is not charging the battery then all the vehicle’s electronics will be draining the battery while driving. Once the battery voltage gets too low the vehicle will quit running. If the alternator is faulty it will need to be replaced and the battery will need to be charged. I would recommend the services of a mechanic to diagnose and repair your issue.

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

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: I have a Nissan Sentra and my car just suddenly won't crank. I had the starter removed and checked, which turned out to be fine.

Hello, thanks for writing in. If your vehicle will not start and you are hearing clicking noises then the first thing I would do is check the starter relay, which is different from the starter. It is not uncommon for...

Q: Radiator issue with my car.

Generally a radiator is not going to cause a car not to start - it is only a heat exchanger for the engine coolant. I think your problem would be more drivability in the fuel (fuel pump injectors fuel lines)...

Q: Fuel pump problems

Thank you for your question. If you are working on a production vehicle, we can't ethically advise you to modify factory components, system design, and the like, especially in a vehicle system as inherently dangerous as fuel supply. For your...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...