General Motors — Rheostat Replacement (In-Tank)
A General Motors service procedure — check it applies to your exact model before use.
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Procedure
- Install the rheostat cover onto the new Rheostat and bracket.
- Install the new Rheostat onto the two mounting studs.
- Install the float assembly onto the two mounting studs and secure using the two (2) nuts.
- Tighten nuts until snug.
- Connect the Rheostat 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.