Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 678 (ENGINE CONTROLS - 4.3L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL TANK REPLACEMENTINSTALLATION PROCEDURE

2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure

WARNING: This page is about a different car, the 2006 GMC Sierra and 2006 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

If necessary, install the sending unit. Refer to Fuel Sender Assembly Replacement .
If necessary, install and connect the EVAP FLVV line to the FLVV, sending unit, and retaining clips.

Fig 1: Identifying Fuel Feed, EVAP Purge & FLVV Lines
Courtesy of GENERAL MOTORS CORP.
If necessary, install and connect the EVAP purge line (2) to the retaining clips.
If necessary, install and connect the fuel feed line (1) to the sending unit and retaining clips.
With the aid of an assistant, place the fuel tank onto the adjustable jack.
Raise the fuel tank until the electrical connections can be made.
Connect the fuel sending unit (2) and pressure sensor (1) electrical connectors.

Fig 2: Connecting Fuel Sending Unit And Pressure Sensor Electrical Connectors
Courtesy of GENERAL MOTORS CORP.
Completely raise the fuel tank.
When raising the tank, ensure that the fill neck on the tank goes over the harness.
Install the fuel tank straps.

Fig 3: Installing Fuel Tank, Strap & Bolts
Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.