CTS V8-5.7L VIN P (2004)
Fuel Tank Unit: Description and Operation
MODULAR FUEL SENDER
The modular fuel sender assembly mounts to the threaded opening of the plastic fuel tank with a multi-lipped seal and a threaded retainer (nut). The
reservoir, containing the exterior inlet strainer, the electric fuel pump and the pump strainer, maintains contact with the tank bottom. This design
provides:
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Optimum fuel level in the integral fuel reservoir during all fuel tank levels and during driving conditions
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Improved tank fuel level measuring accuracy
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Improved coarse straining and added pump inlet filtering
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More extensive internal fuel pump isolation for noiseless operation