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.
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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 1 (ENGINE CONTROL SYSTEM - 8.1L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL HOSE/PIPES ASSEMBLY REPLACEMENT (INTERMEDIATE)INSTALLATION PROCEDURE
2006 Chevrolet Suburban K2500, 6.0 U
Installation Procedure
2006 Chevrolet Suburban K2500, 6.0 USECTION Installation Procedure
WARNING: This page is about a different variant/trim than selected.
- Remove the caps from the fuel and EVAP lines.
- Install the fuel and EVAP intermediate lines.
- Connect the fuel and EVAP intermediate lines to the rear tank. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
- With the aid of an assistant, completely raise the rear tank.
- Install the fuel tank straps.NOTE: Refer to Fastener Notice in Cautions and Notices.
- Install the fuel tank strap bolts.
Tighten: Tighten the bolts to 40 N.m (30 lb ft).
- Remove the adjustable jack from under the fuel tank.
- Connect the fuel pressure sensor electrical connector (1).
- Connect the fuel and EVAP intermediate lines to the front tank. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
- Connect the EVAP canister quick connect fittings. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
- Install the spare tire hoist crossmember and bolts.
Tighten: Tighten the bolts to 50 N.m (37 lb ft).
- Install the rear exhaust insulator.
- Install the spare tire.
- Install the spare tire stowage lock cylinder.
- Install the fuel tank filler housing.
- Install the fuel tank filler housing to fuel tank fill pipe bolts.
Tighten: Tighten the bolts to 2.3 N.m (20 lb in).
- Install the fuel tank filler housing to body TORX® screws (1) and retainer (2).
Tighten: Tighten the screws to 2.3 N.m (20 lb in).
- Refill the fuel tank.
- Install the fuel fill cap.
- Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Use the following procedure in order to inspect for leaks:
- Turn the ignition ON, with the engine OFF, for 2 seconds.
- Turn the ignition OFF for 10 seconds.
- Turn the ignition ON, with the engine OFF.
- Inspect for fuel leaks.
RENDER: 1.0x
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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.