Location of fuel pump module on 2002 Chevrolet Express 3500 series

SOURCE: 2002 chevy express 3500 turns over but wont start,

CHECK YOUR CRANK SENSOR AND CAM SENSOR.

SOURCE: 2002 Chevy Silverado 3500 Fuel gauge reads 1/2

If this was not a problem before the pump replacement then the sender in the tank may of faied or is contaminated with sulfer which is corrosive to the silver electrical contacts.

Do a search on sulfur corrosion and fuel sender units. Gm has big problem with this. Its possable the stress from removing the old and installing the new pump created an issue with contacts. If this is the case you will now need a sender unit.

SOURCE: I need the serpentine belt diagram for a chevy Express Van

DRIVE BELT DECAL SHOULD BE UNDER THE HOOD.OR YOU CAN GO TO DEALERSHIP GET ONE AUTO ZONE OR ADVANCE AUTO PARTS CAN GET YOU ONE.OR YOU CAN BUY A HAYNES REPAIR MANUAL IT HAS BELT DIAGRAM.

SOURCE: location of and how to

These units are in the tank and must be dropped in order to replace.


WARNING Do not handle the fuel sender assembly by the fuel pipes. The amount of leverage generated by handling the fuel pipes could damage the joints.

1. Relieve the fuel system fuel pressure, as outlined in the Fuel System Section.
2. Drain the fuel tank to at most 3/4 of a tank full.
3. Raise the vehicle.
4. Remove the fuel tank.
   NOTE The modular fuel sender support assembly will spring-up when the locking ring is moved.
   
5. Remove the fuel sender assembly using tool J39765 Fuel Sender Locknut Wrench or an equivalent.
6. Note the position of the fuel sender strainer for installation.
7. Support the reservoir with one hand and grasp the fuel sender strainer with the other hand.
8. Pull the external fuel sender strainer off of the fuel sender.
9. Inspect the fuel sender strainer. If the fuel sender strainer is contaminated, the fuel tank should be cleaned.
10. Discard the fuel sender strainer after inspection.
11. Disassemble the electrical connectors from the fuel level sensor assembly of the fuel pump and cover assembly.
12. Disassemble the fuel level sensor assembly.
    
    

    Fig. Fuel level sending unit on fuel sender (fuel pump) module.
    

1. Assemble the fuel level sensor assembly.
2. Assemble the electrical connectors to the fuel pump and cover assembly.
3. Position the new fuel sender strainer on the modular fuel sender and push on the outer edge of the fuel sender strainer until the fuel sender strainer is fully seated on to the sender assembly.
4. Install the fuel sender assembly into the fuel tank using tool J39765 Fuel Sender Locknut Wrench or an equivalent.
5. Reinstall the fuel tank.
6. Lower the vehicle.
7. Add fuel to the fuel tank.
8. Connect the negative battery cable.
9. Reinstall the fuel tank filler pipe cap.
10. Inspect for fuel leaks.
11. Turn the ignition switch ON for 2 seconds.
12. Turn the ignition switch OFF for 5 seconds.
13. Turn the ignition switch ON .
14. Check for fuel leaks.

SOURCE: will crank over-fuel pump is

There should be a fuse relay box under the hood with a fuel pump relay in it...have someone turn the key while you touch the relay to see if it is clicking when you turn the key..if not replace relay....if it does click, then it may be possible that the contacts on the relay are defective and the relay will need replacement anyway...there may also be a fuse for the fuel pump either in this box of under the dash...check to see that it is good also.