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 MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 621 (ENGINE CONTROLS - 3.6L (LY7) (INTRODUCTION))REPAIR INSTRUCTIONSFUEL TANK REPLACEMENTREMOVAL PROCEDURE
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Removal Procedure
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Removal Procedure
WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Relieve the fuel system fuel pressure. Refer to Fuel Pressure Relief ProcedureΒ .
- Drain the fuel tank. Refer to Fuel Tank Draining Procedure .
- Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Disconnect the fuel tank wiring harness connector (1).
- Disconnect the fuel evaporative emission (EVAP) pipes. Refer to Quick Connect Fitting(s) Service (Plastic Collar)Β .
- Remove the EVAP canister bracket nut.
- Loosen the fuel tank fill pipe hose clamp.
- Disconnect the fuel tank fill pipe hose (2) from the fuel tank (1).
- Disconnect the EVAP vent pipe near the fill pipe hose. Refer to Quick Connect Fitting(s) Service (Plastic Collar)Β .
IMPORTANT:
Always maintain cleanliness when servicing fuel system components.
NOTE:
Do not bend the fuel tank straps. Bending the fuel tank straps may damage the straps.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.