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SUBJECT:
2001 – 2004 LB7 Duramax PowerFlo Lift Pump
FITMENT:
2001–2004 LB7 Duramax equipped Chevy/GMC trucks
KIT P/N:
FPE-34809
EST. INST. TIME: 3 hours
TOOLS REQ'D: 1/2" and 3/8" fuel disconnect tools (included), 15mm deep socket and ratchet, 8 mm socket and
ratchet, hammer, chisel or drift.
KIT CONTENTS:
Item
Description
1
PowerFlo lift pump
2
Chassis harness
3
Tank flange seal
4
Level sender float
5
3/8" Fuel line disconnect tool
6
1/2" Fuel line disconnect tool
WARNINGS:
•
Fuel system, including fuel tank, fuel supply, and fuel return lines must be clean before installation.
•
Use of this product may void or nullify the vehicle's factory warranty.
•
The purchaser and end user releases, indemnifies, discharges, and holds harmless Fleece Performance Engineering, Inc.
from any and all claims, damages, causes of action, injuries, or expenses resulting from or relating to the use or installation
of this product that is in violation of the terms and conditions on this page, the product disclaimer, and/or the product
installation instructions. Fleece Performance Engineering, Inc. will not be liable for any direct, indirect, consequential,
exemplary, punitive, statutory, or incidental damages or fines cause by the use or installation of this product.
Qty
1
1
1
1
4
1
1
1
2
FPE-2021-58
July, 2021
3
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Summary of Contents for Fleece Duramax PowerFlo LB7
- Page 1 Use of this product may void or nullify the vehicle’s factory warranty. • The purchaser and end user releases, indemnifies, discharges, and holds harmless Fleece Performance Engineering, Inc. from any and all claims, damages, causes of action, injuries, or expenses resulting from or relating to the use or installation of this product that is in violation of the terms and conditions on this page, the product disclaimer, and/or the product installation instructions.
- Page 2 PROCEDURE: STEP 1: Ensure you have 1/4 tank or less of fuel in the fuel tank to allow for the tank to be easily lowered and maneuvered. Leave enough fuel in the tank to allow for the pump to draw fuel in immediately once installed.
- Page 3 STEP 5: Place a transmission jack or floor jack below the fuel tank and lightly support it. Remove the tank straps using a 15mm deep socket. With the tank straps removed, carefully support the fuel tank and lower it down to the ground. STEP 6: Thoroughly clean off the top side of the tank around the sending unit to avoid getting any debris inside the fuel tank when the sending unit is...
- Page 4 STEP 10: Remove the OE sending unit and sealing flange from the tank. Discard the original seal ring. STEP 11: Thoroughly clean the tank surface where the new lift pump will be installed. Inspect the inside of the fuel tank for any debris. If any debris is present, the tank must be cleaned.
- Page 5 STEP 14: Reconnect the fuel lines to the lift pump feed and return quick disconnect fittings. Connect the new wiring harness supplied with the lift pump to the original OEM harness connector and the other end to the PowerFlo lift pump. STEP 15: Route the wiring harness along the frame rail of the truck to the engine compartment.
-
Page 6: Wiring Overview
WIRING OVERVIEW: Black Connectors – To OEM harness and PowerFlo Black Wire – To Battery negative (-) terminal lift pump Orange Wire – To Battery positive (+) terminal Relay – Provides switched 12v power to the PowerFlo pump Red Wire – To Switched Ignition (+) in Fuse Block To OEM harness and PowerFlo lift pump Battery (-) - Page 7 FUSE TAP LOCATIONS: Any 12 volt ignition source may be used for the fuse tap. Insert the original fuse from the fuse panel into the second fuse tap terminal. We recommend using the fuse tap in location “IGN E” if available. Insert the original fuse from the fuse block into the relay tap below the 5A fuse that is provided in the fuse tap.