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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISENGINE PERFORMANCEREMOVE, OVERHAUL & INSTALLENGINE CONTROLS - REMOVAL, OVERHAUL & INSTALLATIONFUEL SYSTEMS (GASOLINE)UPPER INTAKE MANIFOLD ASSEMBLY (SFI)REMOVAL (3.4L)
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
Removal (3.4L)
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Removal (3.4L)
- Disconnect negative battery cable. Remove fuel injector sight shield. Drain cooling system. Disconnect necessary harness connectors. Remove air inlet duct from throttle body. Disconnect control cables from throttle body.
- Disconnect left-bank spark plug wires from distributor and position aside. Disconnect coolant hose from throttle body. Remove EVAP canister solenoid valve. Remove ignition coil bracket with coils attached. Disconnect necessary vacuum hoses and remove vacuum harness.
- Remove side and rear generator brackets. Remove EGR valve. Remove MAP sensor and bracket. Remove upper intake manifold retaining bolts. Remove upper intake manifold and gasket.
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.