Skip the auto shop - Our mechanics make house calls

Q: How do I know if the fuel pump is bad?

asked by on

Car want to start but it's not turning over.

My car has 110457 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. You will need to...

Hi, thanks for writing in. You will need to check the fuel pressure on the fuel pressure port on the engine fuel rail. The pump should be producing at least 56 to 62 psi for SFI engine. If pressure is low or no pressure then replace the pump and filter. You may also need to replace the fuel pump connector. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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・Save up to 30%

Get a quote

What others are asking

Q: Cranking no start has spark fuel 38 pulse at fuel injectors

Hi, thanks for writing in. Although you can have a "spark" (appearing on an external test), the plugs could be fouled enough to cause a no start condition, especially if you have tried repeatedly to start the engine and consequently...

Q: Fuel problem

From the symptoms described, I would say that we are definitely experiencing fuel problems with your Chevy Blazer. There can be a few things keeping fuel from reaching the engine, such as a blown fuse or a bad fuel pump...

Q: Fuel pump noise

A loud fuel pump often indicates either excessive cavitation, or mechanical failure is eminent. Either of these issues will lead to fuel starvation and drivability issues. My recommendation is to have a mechanic, such as one from YourMechanic, replace the...

Related articles

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.