LaCrosse V8-5.3L (2008)
Important:
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Some lock ring were manufactured with DO NOT REUSE stamped into them. These lock rings may be reused if they are not damaged
or warped.
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Inspect the lock ring for damage due to improper removal or installation procedures. If damage is found, install a NEW lock ring.
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Check the lock ring for flatness.
8. Place the lock ring on a flat surface. Measure the clearance between to lock ring and the flat surface using a feeler gage at 7 points.
9. If the warpage is less than 0.41 mm (0.016 in), the lock ring does not require replacement.
10. If the warpage is greater than 0.41 mm (0.016 in), the lock ring must be replaced.
Installation Procedure
1. Install the fuel level sensor to the fuel sender module. Refer to Fuel Tank Pressure Sensor Replacement (See: Sensors and Switches - Powertrain
Management/Sensors and Switches - Computers and Control Systems/Fuel Tank Pressure Sensor/Service and Repair).
2. Clean the fuel sender sealing flange.
Important: Always replace the fuel sender seal when installing the fuel sender assembly.
3. Install the NEW fuel sender seal (3) to the fuel tank seal groove.
4. Install the fuel sender (2) and the fuel sender lock ring (1).
