Skip the auto shop - Our mechanics make house calls

Q: Wiring to fuel pump is dead

asked by on

The wiring that goes to the fuel pump is dead.

A: I'm guessing you mean there is no power...

I'm guessing you mean there is no power to the fuel pump sending unit. With the ignition switch in the crank position, power flows through a fuse to the fuel pump relay. The powertrain control module (PCM) then closes this relay, completing the circuit and applying power to the fuel pump. The first thing I would check is the fuel pump relay and its corresponding fuse. If these items are okay, the PCM is not controlling the relay when it should. This could be due to a failed sensor, or an internal PCM problem. I suggest you have a trained professional, such as one from YourMechanic, diagnose and repair the electric problem that is occurring within the fuel pump system.

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: Stuck in second gear

The vehicle speed sensor may be malfunctioning and causing the transmission not to shift. The computer will need to have the codes retrieved. I recommend that you have a mechanic, such as one from YourMechanic, come and test the vehicle...

Q: Fuel pump not working 1997 Suzuki Esteem

The problem may not be a fuel-related issue but spark or timing. If the engine speed sensor is failing and the computer cannot determine, which cylinder to fire the vehicle will not start. These sensors can often fail intermittently where...

Q: Clunking when shifting - 2001 Jeep Cherokee

The "clunk" indicates there is a loose coupling somewhere is the driveline. As you diagnosed, u-joints and the differential are the most likely fault points, but this could also be harsh engagement of the transmission due to worn clutches, clutch...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...