General Motors — Torque to 17.5 N•m (13 lb.ft.).

A General Motors service procedure — check it applies to your exact model before use.

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Procedure

1. 12. Inlet fuel line.
2. 13. Negative battery cable.
3. 14. Prime fuel system by cycling key “ON” and “OFF” a few
4. times with engine “OFF.”

Source: manual:5.7L-MEFI-5-Service-Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.