Q: struggling to start after fuel pump assembly replacement

asked by on

So, about a month ago my car just stopped starting. It wouldn't even turn over. I had a diagnostic done by a Your Mechanic technician and he was great. It was recommended I replace the fuel pump assembly, so I did. First it would start really quickly without any struggle but now it kinda struggles a bit but still starts. I wanted to know if the slower start could be because of the colder weather, high mileage, the fuel pump or something else potentially? Also, are there things i should do to prolong the life of my vehicle? Thanks for your response!

My car has 196000 miles.
My car has an automatic transmission.

Hi there. It is possible that there is an issue with the fuel pump, but that is not likely. If the engine is hard to start then that can be caused by a sensor problem. I usually start by checking to see if the fuel pressure is bleeding off when the vehicle sits. This would tell me if there is an issue with the fuel system. I doubt that this is the issue. It sounds more like an issue with the crank sensor. I would use a computer scan tool to watch this sensor reading to see if it is failing. If you need to have this checked out, consider having YourMechanic come out again, as a certified mechanic will come to you to [diagnose why the car is hard to start] https://www.yourmechanic.com/services/car-is-hard-to-start-inspection

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. struggling to start after fuel pump assembly replacement

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 changed the left low beam bulb and it still wont work. is there a fuse that i should try changing?

The headlights on the vehicle are HID or high intensity discharge lights and use a different wiring set up from traditional lighting used for years. Your left and right lights are powered by separate power circuits to keep from overheating...

Q: Car stopped randomly and didn't drive afterwards

Hello, thanks for writing in. The computer will go into a failure mode and may not allow the electronic throttle to open if it detects a major computer or sensor fault. There can be many possible failures that will cause...

Q: I have a 1993 Mitsubishi Mirage. Starter went out and I bought another one an it's still grinding on the flywheel.

Hi there. The start will need to have shims put in between the starter and the engine block. This will make the start pinion gear line up with the teeth on the flywheel. The pinion gear on the starter is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...