Removal & Installation (L100, L200, L300, LW200 & LW300 - 2.2L & 3.0L)

NOTE: Clean all fuel pipe and hose connections and surrounding areas before disassembling to avoid possible contamination of the fuel system. Spray the fuel pump module cam-lock ring tang with penetrating oil prior to attempting removal.

1. Remove fuel tank. Disconnect fuel lines from fuel pump module cover.
NOTE: To prevent retainer damage, DO NOT attempt to remove the retainer with a 12 inch or shorter ratchet/breaker bar. A 1/2 inch breaker bar (approximately 18 inches long) will easily loosen and remove the lock ring.
2. Use the Fuel Sending Unit Wrench (J-43827 2.2L; J-44017 3.0L) to remove the fuel pump module ring. See Fig 1. To prevent bending of the sending unit float arm remove the sending unit first by pulling the retaining clip toward float arm and lift upward.
CAUTION: Always replace fuel pump module to tank "O" ring.
3. Carefully lift fuel pump straight up from fuel tank. To disengage fuel pump from fuel pump housing clips must be disabled at the same time. Discard fuel pump module to tank seal. Remove fuel pump housing by releasing the four retaining clips.
4. The retaining clips hold fuel pump housing to fuel pump housing bracket (mounted in bottom of tank). Disengage clip closest to the pump (where fuel return line attaches to fuel pump housing) by inserting a small flat blade screwdriver between the clip (on the housing) and the mounting bracket. Leave screwdriver wedged in place to prevent clip from reattaching as the other clips are being disabled.
CAUTION: Inspect the fuel tank for metal chips/debris.
5. Disengage the clip closest to the one disengaged in previous step (toward rear of tank). Use a second small flat blade screwdriver to disenable this clip. Remove all contaminants and replace in-line fuel filter before installing a NEW fuel pump assembly when debris is present. Stick one of the screwdrivers between the fuel pump housing and base of the fuel tank to prevent clips (previous steps) from re-engaging.
6. Remove second screwdriver from fuel tank. The next clip to be disengaged is at the rear most position. To disengage this clip tilt housing toward jet pump while releasing this clip. Once these clips have been disengaged push module (or roll the module) in the direction of the remaining clip that is engaged. This will force clip to disengage. Remove housing from tank.
7. To install, reverse removal procedure. Replace fuel pump module to tank "O" ring.

Fig 1: Removing/Installing Fuel Pump Module Retaining Ring (L100, L200 & LW200 - 2.2L Shown; L300 & LW300 - 3.0L Is Similar)

Courtesy of GENERAL MOTORS CORP.