Q: After fuel pump & filter replacements, car won't start

asked by on

Even though I replaced the fuel pump and the filter, my car still won’t start. I checked the relays and all of them are good. The fuel rail has pressure going to it and the pump does kick on. With starting fluid, it will turn over. What ideas can you give me to get my car running. Thanks.

Hello there, I’ll be happy to assist you! The problem is likely within the VATS (Vehicle Anti-Theft System) of the vehicle. More specifically the issue you are having is generally caused by broken sensor inside of the ignition lock cylinder. I’m more inclined to think that the ignition key cylinder is your problem because if it fails the fuel pump will send gas to the engine but the computer won’t send spark to the engine, causing a no start condition.

I’d recommend having a certified technician remove your ignition key cylinder to test it and inspect the related wiring to properly diagnose your starting issue. Also, being that the vehicle will not start you may benefit from a mobile automotive repair services such as YourMechanic.

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. After fuel pump & filter replacements, car won't start

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: replace fuel pump car will start but won't stay crank

You will need to have the fuel pressure tested and computer scanned to see if you are losing fuel pressure or spark due to a computer sensor like a cam or crank sensor or a mass air flow sensor. If...

Q: If I go through a puddle, even one that is not deep, my engine stalls out. Mechanic told me to avoid puddles.

Hi, thanks for writing in. A lot time when this happens, it is due to a bad belt, or the belt is being soiled by oil and fluid from the car. The belt tensioner also could be weak, allowing the...

Q: Car won't start after replacing starter and battery

Hello. There could be several possibilities for why your car isn't starting after replacing your battery and starter. The timing belt could be broken, you could have no spark going to your spark plugs, or your fuel pump might not...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.