General Motors — Fuel Pump and Filter Replacement (In-Tank)
A General Motors service procedure — check it applies to your exact model before use.
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Procedure
- Install the new pump into a new filter.
- Insert the filter and pump into the plastic pump holder.
- Install the Fuel Pump and holder into the tank in the pump mounting bracket.
- Secure the pump holder with the two lower retaining springs and the one upper retaining spring.
- Connect the fuel pump electrical connector.
- Reinstall the multivalve.
Source: manual:FuelSystem.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.