Envoy 2WD V8-5.3L (2007)
4. Remove the fuel sender assembly (2) and seal (3). Discard the seal.
Caution: Refer to Fuel Storage Caution.
5. Clean the fuel sender sealing surfaces (4).
Important: 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.
Important: Inspect the lock ring for damage due to improper removal or installation procedures. If damage is found, install a NEW lock
ring.
Important: Check the lock ring for flatness.
6. 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.
7. If the warpage is less than 0.41 mm (0.016 in), the lock ring does not require replacement.
8. If the warpage is greater than 0.41 mm (0.016 in), the lock ring must be replaced.
Installation Procedure
