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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1342 (ENGINE CONTROL SYSTEM (INTRODUCTION) - 1.8L (LV6))REPAIR INSTRUCTIONSFUEL TANK DRAINING PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Fuel Tank Draining Procedure
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Fuel Tank Draining Procedure
WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
- Loosen the fuel filler cap.
- Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement (FWD) or Fuel Sender Assembly Replacement (AWD) .
- Use a hand operated pump device in order to drain the fuel through the fuel sender assembly opening on the fuel tank.
- Install the fuel sender assembly to the fuel tank. Refer to Fuel Sender Assembly Replacement (FWD) or Fuel Sender Assembly Replacement (AWD) .
- Tighten the fuel filler cap.
IMPORTANT:
If you are removing the fuel tank do not connect the fuel or vapor lines. Do not connect the electrical connectors or install the access panel.
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:
- • 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.