Removal & Installation (Century, Grand Prix, Impala, Intrigue, Monte Carlo & Regal - 3.1L, 3.4L, 3.8L)
CAUTION:
Fuel Vapors can collect while servicing fuel system parts in enclosed areas such as a trunk. To reduce the risk of fire and increased exposure to vapors: Use forced air ventilation such as a fan set outside of the trunk. Plug or cap any fuel system openings in order to reduce fuel vapor formation. Clean up any spilled fuel immediately. Avoid sparks and any source of ignition. Use signs to alert others in the work area that fuel system work is in process.
CAUTION:
Always maintain cleanliness when servicing fuel system components.
CAUTION:
Care should be taken not to fold over or twist the fuel pump strainer when installing the fuel sender assembly, as this will restrict fuel flow. Also, assure that the fuel pump strainer does not block full travel of float arm. Be sure that the fuel sender assembly retaining snap ring is fully seated within the tab slots on the fuel tank. Always replace the fuel sender "O" rings when reinstalling the fuel sender assembly.
NOTE:
Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system: The fuel pipe connections, the hose connections and the areas surrounding the connections.
NOTE:
Always re-attach the fuel lines and fuel filter with all original type fasteners and hardware. DO NOT repair sections of fuel pipes.
NOTE:
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. DO NOT use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
- Relieve the fuel system fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Disconnect the negative battery cable. Remove the spare tire cover, the jack, and the spare tire.
- Remove the rear compartment trim panel. Remove the nuts retaining the fuel sender access panel. See Fig 1. Remove the fuel sender access panel. Disconnect the fuel tank pressure sensor electrical connector. Disconnect the fuel sender electrical connector.
- Clean the fuel pipes, and fuel sender assembly to prevent possible fuel contamination during removal. Disconnect the quick-connect fittings at the fuel sender assembly. Remove the fuel sender retaining snap ring. See Fig 2. Remove the modular fuel sender assembly.
- Clean the fuel sender assembly "O" ring sealing surfaces. Inspect the fuel sender assembly "O" ring sealing surfaces.
- To install, reverse removal procedure. Tighten all fasteners to specification. See TORQUE SPECIFICATIONS .
- Inspect the fuel system for leaks by performing the following steps: Turn the ignition switch ON for 2 seconds. Turn the ignition switch OFF for 10 seconds. Turn the ignition switch ON. Inspect for fuel leaks.
CAUTION:
The modular fuel sender assembly will spring-up when the snap ring is removed.