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 123 (ENGINE CONTROLS - REMOVAL, OVERHAUL & INSTALLATION)FUEL SYSTEMSFUEL TANKREMOVAL (INTRIGUE)
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Removal (Intrigue)
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal (Intrigue)
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
- Release the fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE . Drain the fuel tank. See FUEL TANK DRAINING .
- Loosen the fuel filler hose clamp from the fuel tank. Remove the fuel tank filler hose from the fuel tank. Disconnect the quick-connect fittings from the front of the fuel tank. See FUEL LINE DISCONNECT FITTINGS .
- Disconnect the EVAP pipe from the connection at the front of the fuel tank. Remove the rubber exhaust pipe hangers in order to allow the exhaust system to drop slightly. Separate the two halves of the EVAP fresh air hose at the splice. Remove the 3 push pins and the fuel tank shield. Support the fuel tank with a suitable transmission jack.
- Remove the fuel tank strap bolts. Lower the fuel tank to access the EVAP hose connections. Disconnect the EVAP pipes from the rear of the fuel tank. Disconnect the EVAP pipe from the EVAP canister vent valve. Disconnect the fuel filler neck EVAP pipe at the rear of the fuel tank. Slowly lower fuel tank and remove the fuel tank from the vehicle.
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.