Q: No power to the fuel pump just replaced it.what's the problem? 2009 Mercury Grand Marquis

asked by on

No power to feel pump just replaced it no fuses are blown out cranks good no gas no sound in fuel tank when I turn key on

My car has 125000 miles.
My car has an automatic transmission.

Hi there - if you don’t hear the fuel pump running - ever - check fuses first as you mention, the be sure you have power coming out of the fuel pump relay. I suspect the fuel pump relay is what failed. If power comes in, but isn’t coming out, the relay has failed, and must be replaced. it is located under the hood, directly in front of the driver, mounted on top of the left, front wheel well, under a rectangular, black plastic cover - with other relays of course. If the relay is good, check the ground wire for the fuel pump, that it was properly re-attached after the pump was replaced. For assistance with this problem, I recommend a car not starting inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

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

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!
  1. Home
  2. Questions
  3. No power to the fuel pump just replaced it.what's the problem? 2009 Mercury Grand Marquis

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: Steering column

Hello there, adjusting, installing and working on your 1993 Mercury Grand Marquis is a delicate matter. The transmission linkage, and the gear selected cable are critical to the cars function and improper installation is a big problem. If you are...

Q: Fuel pump relay location on a 96 Ford Thunderbird.

Hi there. The fuel pump relay is located on the fuse box, the second relay on the bottom near the locking tab. The location port is C1051 for the fuel pump relay. If you need further assistance with the fuel...

Q: The solenoid on my 1991 grand marquis is smoking

Hi Liz. Thanks for contacting us today. In most cases, a solenoid will smoke when an electrical circuit remains open and it's receiving the constant flow of electricity. This creates an overheating problem with the solenoid and can cause additional...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...
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...