Chevrolet 88965799 Fuel Tank Meter/Pump SENSOR KIT

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At first, disconnect the cable from the negative side of the battery and release the pressure in the fuel system so that you can remove the fuel pump/fuel level sensor. Remove the fuel tank, then disconnect both evaporative (EVAP) vent line and fuel tank vent line fitting as well as two quick-connect fittings on the fuel supply line from the mounting flange of the fuel pump/fuel level sensor. With water pump pliers, rotate off a lock ring of a fuel pump/fuel level sensor using care not to damage a float arm and a float of a fuel level. After checking o-ring it may be necessary to replace one before installing a new pump. During installation, align these marks made on this flange with those on a tank and carefully put down this flange into their seats where my float arm or even floats will neither be harmed nor damaged when they are placed until they reach there at all.

Remove the sensor unit from the fuel pump module.

Before removing the fuel pump/fuel level sending unit module, you should disconnect the cable from the negative battery terminal and relieve the system fuel pressure.

The entire fuel pump module must be replaced.

To remove the fuel pump/fuel level sending unit module, you need to remove the fuel tank and disconnect the EVAP vent line, fuel tank vent line fitting, and fuel supply line quick-connect fittings from the fuel pump/fuel level sending unit mounting flange. Then, using water pump pliers, unscrew the fuel pump/fuel level sending unit module lock ring and remove the pump assembly, taking care not to damage the fuel level sensor float arm and float.

Slide it into place on the fuel pump module until it clicks and verify that it's locked into place.