Getting no electric to fuel pump - 1988 Dodge Dakota

Installing an electric fuel pump on a Hino 700 dump truck requires some mechanical knowledge and skill. Here is a general guide on how to install an electric fuel pump:

1. Gather the necessary tools and equipment: You will need a socket set, screwdrivers, hose clamps, fuel line, electrical connectors, and electrical tape.
2. Locate the existing fuel pump: The stock fuel pump may be mechanical or electric, depending on the truck's model. Locate the fuel pump and ensure that it is easily accessible.
3. Disconnect the battery: Before starting any work, disconnect the truck's battery to prevent electrical shock or short-circuiting.
4. Remove the stock fuel pump: If the truck has a mechanical fuel pump, it needs to be removed. To remove it, disconnect the fuel lines and electrical connections, and unbolt the fuel pump from the engine.
5. Install the electric fuel pump: Find a suitable location for the electric fuel pump that is close to the fuel tank and away from excessive heat. Mount the pump securely using the supplied mounting brackets.
6. Connect the fuel lines: Use the appropriate-sized hose clamps to connect the fuel lines to the electric fuel pump. Ensure that the connections are tight and secure to prevent leaks.
7. Connect the electrical connections: Install the necessary electrical connectors to connect the fuel pump to the truck's electrical system. Follow the manufacturer's instructions and use electrical tape to secure the connections.
8. Double-check everything: Before starting the truck, double-check all connections, fuel lines, and electrical connections. Ensure that there are no loose or leaking parts.
9. Reconnect the battery: Once everything has been securely installed and checked, reconnect the truck's battery.
10. Test the fuel pump: Turn the truck's ignition to the "ON" position without starting the engine. Listen for the electric fuel pump to prime and pressurize the fuel lines. If everything sounds normal, start the truck and check for any leaks.

Not getting gas TO the fuel pump ? Yes there is a ASD - auto shut down relay ,but has nothing to do with fuel pump power . Check the fuel pump relay . Videos on you tube testing fuel pump electrical circuit . Fuel Pump Electrical Circuits Description and Operation

Gotta know what type of vehicle....

How do you know there isn't enough electrical power? Low pressure might indicate a bad or weakening fuel pump or bad fuel pressure regulator or possibly clogged fuel injectors. If the fuel pump is getting the 12V via relay/ignition switch then it's not an electrical problem, but a fuel delivery problem probably caused by the things mentioned above.

Replace the mechanical pump with a new unit and that will remove any reason of broken/failure from the equation. Remove the electric pump altogether and leave 1 filter in the line before the mechanical pump. Mechanical pumps are not in favour with some people who have no idea that they can be adjusted to give more pressure and greater volume for the bigger capacity engines. Some mechanical pumps are more expensive to repair / replace but if you price an electric pump to supply the volume that a properly adjusted or a larger capacity mechanical pump then the cost saving is minimal. Unless you get a fuel filter that is rated with a smaller micron rating than the standard filter any number of filters will not work as the smallest particle will get through the lot

There are many reasons why fuel pumps have no power, most (in tank) fuel pumps fail due to low fuel inside of tank.

These fuel pumps turn at an alarming rate which in turn causes an alarming amount of heat. This heat is then dissipated by the fuel inside of the tank itself.If the driver/operator allows to run the fuel very low and continue to do so, this will over time allow for the fuel pump to overheat due to the ONLY source used to cool the fuel pump is the fuel inside of the fuel tank itself. Electrically, view the operator's manual or similar source to locate fuel pump fuse and/or relay of which will open the electrical path when the fuel pump overheats.
This should be a pretty good starting point to locate/isolate electrical issue you may be experiencing.

Good Hunting to you & hope this gets you back on the road soon!
FASTESTNASCAR

SOUND LIKE THE ELECTRIC LOW PRESSURE FUEL PUMP CHECK FUSE TO SEE IF PUMP GETTING POWER. IF NOT REPLACE FUSE AND CHECK THE WIRE TO PUMP.IF PUMP IS GETTING POWER..REPLACE FUEL FILTER FIRST.IF IT DONT HELP.COULD BE THE ELECTRIC LOW PRESSURE PUMP. FAULTY. IT PUMPS DIESEL FUEL IT INTO INJECTION PUMP TO BE PRESSURIZED TIMED AND INJECT.SEE IF LOW PRESSURE PUMP DONT WORK THE WHOLE ENGINE WONT RUN.THE INJECTION PUMP NEED FUEL FROM LOW PRESSURE ELECTRIC PUMP TO RUN ENGINE.

Removal

1. Relieve the Fuel System Pressure . Refer to the procedure in this section.
   

Cushion Cover and Pad, Rear Seat — One-Piece and 50/50 Split Fold Removal

1. Remove the two rear seat cushion bolts.
   

1. Fold the rear seat back cover and cushion (60084) forward.
   

1. Carefully pull the rear seat cushion and cover (60030) out from under the rear seat back cover and cushion and remove the rear seat cushion and cover from the vehicle
   

1. Remove the rear seat cushion and cover (60030). Refer to Section 01-10 for the removal procedure.
   

1. Remove the three luggage compartment floor cover hold-down pins and fold the luggage compartment floor cover (45455) forward until the fuel pump assembly access plate is visible.
   

1. Remove the four fuel pump assembly access plate screws, the ground lead, and the fuel pump assembly access plate from the chassis.
   
   
   
   
   

1. Disconnect the fuel pump assembly electrical connector.
   
   
   
   
   

1. On 4-door vehicles, remove the fuel vapor tube shutoff valve bolt and the evaporative emission tube shut off valve (9G332) from the bracket on the fuel pump assembly housing.
   
   
   
   
   

1. Loosen the two hose clamps and disconnect the two fuel pump hoses from the fuel pump hose fittings on the fuel pump assembly housing.
   
   
   
   
   

1. Remove the four screws (2-door) or eight screws (4-door) and lift the fuel pump assembly housing from the fuel tank (9002).
   
   
   
   
   

1. Disconnect the fuel level sensor electrical connector.
   

1. Remove the two fuel level sensor washers and fuel level sensor nuts and the fuel level sensor.
   
   

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Section 10-01: Fuel Tank, Filters, Lines and Electric Fuel Pump 1996 Aspire Workshop Manual
REMOVAL AND INSTALLATION Fuel Pump Removal

1. Remove the fuel level sensor. Refer to the Fuel Level Sensor removal procedure in this section.
   

1. Remove the fuel pump screw, fuel pump grommet and the fuel pump bracket from the bottom of the fuel pump (9350).
   
   
   
   
   

1. Remove the fuel tank sender filter bracket, fuel tank sender filter (9A011) and the fuel tank sender filter retainer from the fuel pump.
   

1. Disconnect the fuel pump electrical connector.
   

1. Remove the clamp and the fuel pump from the fuel pump assembly housing.
   

The electric fuel pump is located in the fuel tank. Lift up the rear carpet in the load area and you should see a round plate , remove the screws and then the plate. There will be the fuel pump along with the fuel pick up and sensor for the guage. Turn the big round plastic outer ring anti clockwise and then the electric connection and fuel pipes. now it can be removed. Refit is reversal of removal.Are you sure the pump is faulty, did you check the fuse. If the fuse is ok , then gain access to the fuel pump, but before removing, get a test lamp and see if you have power getting to the pump, using the electric connection, try with just the contact first and also with the engine cranking/turning over. This will erradicate any misdiagnosis , wether its the pump or an electric installation problem.
Hope this helps