Q: Car only runs when jumper the fuel pump

asked by on

The fuel pump in my car isn’t getting any volts. The following have been replaced in my car:

  • fuel pump
  • fuel pump basket
  • fuel pump driver module
  • fuel filter
  • starter

My car will only run if I jumper the fuel pump, since it hasn’t been getting any volts. Please give me advice on what to do to about the fuel pump. Thanks.

Check to see if you are getting power when you test the green with orange stripe wire going to the fuel pump module. If you have no power then check the the fuel inertia switch, in the left kick panel, by the drivers foot, and see if the inertia switch is not tripped. If it is, reset it and the pump should work.

If the switch is okay then make sure it has power to it and from it, when cranking the engine. If you have no power then check the fuel relay and see if it has power to it and that it’s being turned on when you crank it. If you do not then you may have an issue with the computer not activating the fuel pump. This will require a scan of the system and in-depth tests further than the scope of what this diagnoses is capable of. You will need a wiring diagram to follow and a scanner to activate the relays to test the system.

If you decide to get this fixed, contact a certified mechanic who can perform all of these checks in order to find the root of your starting problem. Once this is done, an accurate repair can be made.

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
  1. Home
  2. Questions
  3. Car only runs when jumper the fuel pump

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: Car takes 2-3 tries before starting

A few different things can cause the vehicle to have camshaft sensor codes. The most common would be the failure with the camshaft sensor, timing chain damage, improper timing, or a wiring issue. The Check Engine Light should illuminate when...

Q: What should I know about the cabin air filter?

Your engine has an air filter, and it serves to protect the engine of the car from damaging dust, pollen and debris. Your car’s Air Conditioning system also has a filter – called a cabin filter. It serves the same...

Q: What parts do I need if I'm getting a few codes

Hi there. To be honest, with the information you've provided, the list of parts you would need to possibly resolve these codes would include more than 50 individual components. An error code might be related to a specific system (like...

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...