Skip the auto shop - Our mechanics make house calls

Q: Fuel pump not working after sitting

asked by on

My car was running great, but then I let it sit for a week. Now, when I try to start it, I can't hear the fuel pump relay kick in or the fuel pump prime. I checked and it the fuel pump is also not getting any voltage.

A: If you do not hear the relay click, you may...

If you do not hear the relay click, you may be losing power before the relay or the relay itself could be faulty. I would enlist the help of a technician who is proficient in electrical diagnosis, such as one from YourMechanic, to help you with this issue. The first step would be to test the relay for proper function. This can be done by simply switching it with a known working relay of the same type. If the relay is bad, replace the relay. If the relay is good, have the technician test for a loss of power in the wiring before the relay as the relay may not be receiving battery voltage. Once the loss of power source has been determined the correct repair can be made.

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: Window off track

Hi. The window glass has a mechanical connection to the window regulator and motor assembly. The track built into the door has mounting points as well that must hold strong during window operation. Have an experienced technician inspect the window...

Q: Engine loses revs idling til the thing stalls

The most likely cause for your engine performance problem is a balance chain and fuel pump issue. GMC has released Special Coverage Adjustment 12313B which outlines replacement of the fuel pump and balance chain. A fault with either of these...

Q: How expensive would it be to replace the driver seat door?

Your best bet is to try and find a used door that is the same color as the original. Paint work adds a lot to the cost. Your local body shop will be able to perform the repair for you....

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...