Automotive Manual PDF

If you have a high mileage vehicle, we recommend changing the fuel filters inside the module. The primary fuel filter and the inlet filter sock are not currently available as service parts from GM so changing these filters requires purchasing an all new fuel pump module. Complete fuel pump modules are available from LPE (see part number listed above).

Installation Instructions:
1) Follow the GM service instructions for removing the fuel pump module from your vehicle. Service manuals are available from Helm Inc. ( http://www.helminc.com ).
2) Unplug all the wires from the bulkhead connector at the top of the module.
3) Carefully remove the outer “bucket” from the fuel pump module assembly.
4) Using a small pocket screwdriver, carefully pry the fuel sock (fuel pump inlet filter) from the center pin on the bottom of the fuel pump. Save the fuel sock. You will be reusing the fuel sock when you reassemble the module.
5) Using wire cutters, clip the small ground wire as close to the fuel pump terminal as possible.

Get pdf LS2 equipped SSR & Trailblazer SS High Fuel Pump Upgrade Kit Installation Instructions

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The 2004 to 2006 GTO fuel system uses a method that is referred to as a “return side jet” to fill the fuel pump canister. This means the fuel from the fuel pressure regulator return is being used to create the high velocity jet that fills the pump canister. The pump itself, like most modern fuel systems, actually pumps the fuel out of the canister to the engine and the jet refills the canister. This means that if you are using all or almost all of the fuel that the pump can deliver, there is little or no fuel returned to the canister by the pressure regulator. Since there is nothing left to drive the jet, the jet is not able to refill the canister and the pump will eventually run dry. For this reason it is even more important to have a pump capable of delivering more fuel than is needed on the GTO.
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