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?
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: Gas not going through new filter

If you have recently installed a new fuel filter, ensure that the filter was installed correctly. Fuel filters are only designed for the fuel to flow in one direction. If the fuel filter was installed backwards, this will prevent the...

Q: Belt pulley froze

Hi. First we have to determine which pulley seized. Idler pulley are present to route the belt around obstacles and to provide more belt contact on other parts. They are relatively inexpensive. If the power steering pump, alternator, or water...

Q: Do you have to remove spark plugs to replace valve cover gasket in 1999 dodge avenger 2.5l

Hi there. Yes, when you remove the valve covers you need to remove the spark plugs first. I would highly recommend having an air hose and spraying off that entire spark plug area first to make sure you don't have...

Related articles

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.