Skip the auto shop - Our mechanics make house calls

Q: Changed dead battery and fuel pump and still no start

asked by on

Changed dead battery and couldn't hear fuel pump prime. Changed fuel pump and checked all power and relays and still cranks but won't start. Will start for a few seconds on ether so that tells me it has spark. Inertia switch fine

My car has 148000 miles.
My car has an automatic transmission.

Hello There, I think you are on the right track in starting with checking the fuel pump for power at the pump and the relay. I would suggest next checking to be sure the injectors have power going to each of them and that there are no problems with the injector harness. You may also want check to be sure the fuel pressure regulator is maintaining the correct fuel pressure once the motor ignites as this is important to maintain the motor running. Along with this, you will want to check the fuel pressure sensor as well to be sure it is relaying the correct fuel pressure. If you need further help with this, please feel free to reach out to us here at YouMechanic and we will be glad to help.

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: Problem with fuel gauge - 2000 Ford Escort

Hello. There are a few issues you are going to need to look into, and go through until you find the real issue. You can start by scanning the vehicle for diagnostic troubleshooting codes. This may or may not give...

Q: How would i know that i need to replace the vanos?

The VANOS is a variable camshaft timing system that uses engine oil pressure to change the camshaft position. The VANOS solenoid is an electrically operated valve that diverts oil pressure to the correct devices under certain conditions. Usually the first...

Q: 2005 ford mustang GT wont fill up past the halfway mark

Hello. We will be happy to assist you. Anything built before 4/27/05 may develop problems with the fuel tank and a replacement is suggested. The issue with those tanks are that they won't fill up all the way because the...

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...
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...