Express 2500 V8-6.6L DSL Turbo (2010)
3. Remove the sending unit and seal. Discard the seal.
4. Clean the sending unit sealing surfaces.
5. If replacing the sender assembly, remove the fuel level sensor. Refer to Fuel Level Sensor Replacement (See: Fuel Level Sensor Replacement).
Note:
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Some lock rings 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.
6. Place the lock ring on a flat surface. Measure the clearance between the lock ring and the flat surface using a feeler gauge at 7 points.
7. If warpage is less than 0.41 mm (0.016 in), the lock ring does not require replacement.
8. If warpage is greater than 0.41 mm (0.016 in), the lock ring must be replaced.
Installation Procedure
1. Install the fuel level sensor, if necessary. Refer to Fuel Level Sensor Replacement (See: Fuel Level Sensor Replacement).
