Mechanics

FUEL PUMP

2001 GMC Safari

Engine Performance problem
2001 GMC Safari 6 cyl Two Wheel Drive Automatic 160000 miles

I was running the van consitently on low fuel at almost E.

In the mornings it had trouble getting started, until it wouldn't start at all after being parked for a couple weeks.

The only way I could get it to start was by dropping a little fuel after the air filter.

I understand that the fuel pump inserted in the gas tank needs the fuel for cooling and damage to the pump is highly possible at this point.

I bought the fuel pump and inspected the tank mounting to lower it for pump replacement, but I am concerned with the rigid fuel pipe lines coming from the top of the tank which could be damaged on lowering the tank.

If these lines are unscrewed at the fuel filter would this prevent damage to the rigid fuel lines when the tank is lowered, after disconnecting the battery positive terminal?
Avatar
Genaro
March 10, 2009.




Hello

Thanks for the donation.

There are steps you need to take to properly replace your vehicle's fuel pump safely. Below are the steps, please read and follow them carefully. Failure to do so may result in damage to vehicle or injury to self/others..

REMOVAL:
Properly relieve the fuel system pressure.
Drain the fuel tank.
Support the fuel tank.
Disconnect negative battery cable.
Disconnect filler neck from the tank.
Remove shield from tank and tank straps.
Disconnect fuel lines and vapor hose from pump.
Disconnect electrical connection from fuel pump.
Remove fuel tank.
Remove fuel pump/sending unit assembly by turning the locking ring (located on top of the fuel tank) counterclockwise using a spanner wrench.
Remove fuel pump from the fuel lever sending device.

(((View of the in-tank fuel pump assembly)))


http://www.2carpros.com/forum/automotive_pictures/261618_0900c15280227d75_1.jpg



INSTALLATION:
Install fuel pump in tank with new seal around opening.
Raise tank and connect fuel lines and vapor hose.
Install tank to the frame. Torque the fasteners to 33 ft. lbs. (45 Nm).
Install shield.
Install fuel filler neck and clamp.
Connect negative battery cable.
Refill the tank.
Run the engine and check for leaks.

If you need further assistance just let me know..

Thanks for using 2CarPros.com!

Bluelightnin6
Mar 10, 2009.


AD