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Did the car start before you installed the new pump?
Did you have fuel pressure?
Do you have poser to the fuel pump?
Do you have a good ground at the fuel pump?
what engine do you have?
Why did you replace the fuel pump?
? 3:10
https://www.youtube.com/watch?v=FffdzqknP3k
Apr 20, 2012 - Uploaded by Airtex Pumps
This video is about how to install a new Airtex fuel pump module into some GM ... fuel pump and gas tank to a 98 internal fuel pump and gas tank on my truck 88 gmc. the wires are a little different. .... Check the power & ground at the pump. ... CHEVY SILVERADO FUEL PUMP CHANGE OUT.2500HD 2001.
? 13:54
https://www.youtube.com/watch?v=Q3ZiTsKCdO8
Feb 3, 2012 - Uploaded by ScannerDanner
2001 GMC 3500 8.1L engine with no fuel pressure. In this video I am showing how to test the fuel pump electrical circuit using atest light and scan tool. ... seconds on the ground wire. when i unplug the harness from the the fuel pump .... need help newfuel pump chevy venture 2004 runs for a few days then ...
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.
if one of the o rings on the fuel pump moved when you installed the new pump that may cause you to have no fuel pressure. i have had the same problem once before and it was one of the o rings on the fuel pump. lubricate the o rings with vasaline before installing
Fuel Pump - Multi-Port Fuel Injection models
REMOVAL & INSTALLATION 1984-95 Models
Fig. 1: Loosen the hose clamps and tag the fuel hoses before disconnecting them . . .
Fig. 2: . . . then detach the hoses from the fuel pump module/sending unit
Fig. 3: Disengage the fuel pump module/sending unit wiring harness connector
Disconnect the negative battery cable.
Remove the fuel tank filler cap.
Relieve the fuel system pressure as outlined in this section.
Drain the fuel from the fuel tank.
Raise and support the rear end on jackstands.
Remove the fuel inlet and outlet hoses from the sending unit. Be ready to catch any spilled fuel.
Disengage the sending unit wires.
Fig. 4: The fuel pump module/sending unit retaining ring must be rotated counterclockwise for removal
Using a brass punch and hammer, remove the sending unit retaining lockring by tapping it counterclockwise.
Fig. 5: Carefully pull the fuel pump module/sending unit out of the fuel tank - step shown with the fuel tank mounted on the vehicle
Fig. 6: Remove and discard the fuel pump module O-ring gasket
Remove the sending unit, which incorporates the electric fuel pump, along with the O-ring seal from the fuel tank. Discard the O-ring.
Remove and discard the pump inlet filter.
Disengage the fuel pump terminal wires.
Remove the pump outlet hose and clamp.
Unfasten the pump top mounting bracket nut and remove the pump.
To install:
Install a new inlet filter on the pump.
Fig. 7: This is the proper positioning of the fuel pump module assembly inside the fuel tank
Assemble the pump and bracket. Connect the hose and wiring.
Install the unit and new O-ring in the tank. The rubber stopper on the end of the fuel return tube must be inserted into the cup in the fuel tank reservoir.
Install the lockring. Carefully tap it into place until it seats against the stop on the tank.
Connect the hoses.
Engage the wiring.
Lower the vehicle, fill the tank, run the engine and check for leaks.
Drain and remove the fuel tank as outlined in this section.
Using tool 6856 or its equivalent, remove the module locknut which is threaded onto the fuel tank. The module will spring up when the nut is removed.
Remove the module.
To install:
Install a new gasket and place the module into the opening in the fuel tank.
Position a new locknut on top of the module and tighten the nut using tool 6856 or its equivalent to 40 ft. lbs. (54 Nm).
Install the fuel tank as outlined in this section.
Fig. 9: Locknut removal using tool 6856 or its equivalent
Fig. 10: Install a new gasket on the fuel tank opening
Fuel Pump ModuleRemoval & InstallationTo Remove: WARNING Highly flammable mixtures are always present in any fuel related component. Smoking or carrying lighted tobacco or an open flame of any type may ignite the flammable mixtures. WARNING Even when the engine is not running, fuel in the fuel system remains under high pressure. Fuel system pressure must be relieved before working on or disconnecting any of the fuel lines, fuel tubes, or fuel system components. Failure to do so may result in accidental spraying of fuel, personal injury, or a fire hazard.
Fuel Pump Module-in tank, no compartment to replace fuel pump
Removal & InstallationTo Remove: WARNING Highly flammable mixtures are always present in any fuel related component. Smoking or carrying lighted tobacco or an open flame of any type may ignite the flammable mixtures. WARNING Even when the engine is not running, fuel in the fuel system remains under high pressure. Fuel system pressure must be relieved before working on or disconnecting any of the fuel lines, fuel tubes, or fuel system components. Failure to do so may result in accidental spraying of fuel, personal injury, or a fire hazard.
Before servicing the vehicle, refer to the Precautions Section.
Relieve the pressure from the fuel system.
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
Place a clean rag in the hole to keep out dirt.
To install:
Remove the rag
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
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
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.
Before servicing the vehicle, refer to the Precautions Section.
Relieve the fuel system pressure.
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
Raise up the fuel pump assembly and detach the fuel tubes and
connector.
Fuel gauge assembly
Fuel pump with the fuel chamber
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:
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
Start the vehicle, check for leaks and repair if necessary.Inspection cover and the rear seat
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