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What should I do if the new fuel pump will not come on

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Check and make sure it's getting correct voltage. If not fix the problem with the voltage if it is make sure the ground is good and if ground is good then the new pump is bad. Or try running the wires directly off of a charged battery if it runs you have a wiring problem

Posted on Apr 24, 2015

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Posted on Jan 02, 2017

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WE PUT NEW FUEL PUMP ON B2300 MAZDA 1994 YOU PUT GAS IN THE THROTTLE AND IT RUNS BUT WILL NOT START NO OTHER WAY


New pump may be bad--it happens. There should be a check valve that keeps fuel from draining back when you turn it off. If this is not working it could cause this.

Oct 17, 2016 | Mazda B2300 Cars & Trucks

1 Answer

We have replaced fuel pump in a 98 ego metro LSi drove home ran fine. Now it won't start any ideas why it won't start.


Pam, was the fuel filter replaced at the same time that the fuel pump was replaced? If not, replace the fuel filter. Often, the filter will get clogged with debris. When that happens, the fuel pump will be ruined. Replacing the pump without replacing the fuel filter can ruin the new pump. It is also possible that your new fuel pump is defective. Now that most replacement parts are made in China and the third world, there is virtually NO quality control. I'm a professional mechanic and defective brand new parts are a BIG problem in this industry. Was the fuel pump relay replaced when the new fuel pump was installed? Always install a new relay, as a failing [your old] fuel pump will often damage the relay. This will cause problems with the new fuel pump. I would advise that you install a fuel pressure test gauge to the engine. This will allow you verify whether or not the engine is receiving enough fuel pressure. If the pump works but the pressure is low, also check the fuel pressure regulator. The web links below should help you.


How to Check for Fuel Delivery in Geo Metro eHow

FYI, there is also a "sock" style pre-filter on the fuel pump. This also needs to be replaced any time that you replace the fuel pump.

Mar 13, 2015 | Cars & Trucks

1 Answer

No fuel to engine


check to see if it has fuel cutoff reset behind the kick panels . Many Fords do

Mar 16, 2017 | Cars & Trucks

1 Answer

1999 chevy silverauto quits running no fuel pressure. new fuel pump new filter. Can't figure it out


might be a bad fuel regulator.. or your fuel pump relay might be going bad.. and also where did u get your fuel pump from.. i ran into a problem where i had to replace a fuel pump 3 times before i finally got on that worked right..

Apr 29, 2012 | Chevrolet Cars & Trucks

1 Answer

1994 ford explorer, new fuel pump,new fuel pump relay,no power to fuel pump


Have you checked the fuel ppm cut off switch? It should be under the passenger side of the dash. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Feb 21, 2012 | Ford Explorer Cars & Trucks

1 Answer

Ran out of gas in 92 prizm...new fuel pump, new fuel filter, theres fire in plugs, fire in fuel ignitors, what could the problem be...


IF YOU RAN OUT OF GAS WITH NEW FUEL PUMP.MORE LIKELY YOU DAMAGED NEW FUEL PUMP NEVER NEVER RUN OUT OF GAS.GAS KEEP FUEL PUMP COOL AND KEEPS FUEL PUMP LUBRICATED

Sep 18, 2011 | 1992 Geo Prizm

1 Answer

How to change a fuel pump on a 2005 Nissan


Nissan Car Altima & Sentra 1999-06 Repair Guide
Fuel Pump - Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Relieve the pressure from the fuel system.
  3. Remove or disconnect the following:
    NOTE When the fuel sending unit needs to be removed, pull the tab upwards. The tab is located on the sending unit, opposite the end of the float. After the tab is pulled, the sending unit will lift straight out of the tank bracket.
    Negative battery cable Rear seat and the access cover Fuel pump electrical connector Fuel lines from the fuel pump assembly Locking ring Fuel gauge assembly Fuel tube and connector from the fuel gauge
    Fuel pump by pinching the 2 locking tabs together. Lift the fuel pump assembly straight upward and out of fuel tank. O-ring and discard
  4. Place a clean rag in the hole to keep out dirt.
To install:
  1. Remove the rag
  2. Install or connect the following:
    NOTE Verify that the mark on the fuel tank and the components are aligned when installing the pump and fuel gauge sending unit.
    New O-ring and fuel pump Electrical connection and fuel tube to the fuel gauge sending unit Fuel sending unit into the tank
  3. If equipped with a threaded lock ring torque the ring to 22-26 ft. lbs. (30-35 Nm). If equipped with a lock ring held by six retaining screws, torque the screws to 18-22 inch lbs. (2-2.5 Nm).
    Fuel lines and fuel pump electrical connector. Always install new clamps on the fuel lines. Negative battery cable
  4. Start the engine, check for leaks and repair if necessary.
    Fuel pump access cover Rear seat

The fuel pump is located in the fuel tank on all vehicles. In-tank fuel pumps are accessible by lifting up the rear seat to gain access to the inspection cover.
  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Relieve the fuel system pressure.
  3. Remove or disconnect the following:
    Negative battery cable Rear seat from the vehicle Inspection cover that is located under the rear seat Inlet and outlet fuel lines from the fuel pump assembly Fuel pump and gauge wiring connections 6 mounting bolts that secure the fuel pump assembly to the top of the fuel tank
  4. Raise up the fuel pump assembly and detach the fuel tubes and connector.
    Fuel gauge assembly Fuel pump with the fuel chamber
  5. Pull up the front of the fuel pump chamber and slide the chamber forward.
    Fuel pump from the chamber O-ring seal or gasket
To install:
  1. Install or connect the following:
    Fuel pump to the fuel pump chamber and slide chamber rearward Fuel pump with the fuel pump chamber Fuel gauge assembly using a new O-ring Fuel tubes and connector. Use new hoses and clamps. 6 mounting bolts to the top of the fuel gauge unit and torque the bolts to 18-22 inch lbs. (2-2.5 Nm) Fuel pump and gauge wiring connections New inlet and outlet fuel lines to the fuel pump assembly Negative battery cable
  2. Start the vehicle, check for leaks and repair if necessary. Inspection cover and the rear seat

Hope helps (remember comment and rates this).

Jul 07, 2010 | 2005 Nissan Sentra

1 Answer

Car wont start


check your fuel pressure it should be 35 psi .fuel pump relays dont go out but check all fuses with test light there is a fuel injector fuse but most likely problem is your fuel pump!

Mar 11, 2009 | 1991 Pontiac Grand Prix

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