Sender Unit And Float: Installation

Position the sender unit tank in the locator slot and snap the unit into place.
NOTE: Verify that the float arm on the sender unit maintains the correct relationship to the pump module by standing the module on a flat, horizontal surface and measuring the distance between the surface and the bottom of the float. Use a 5/32 in. diameter drill as a gage. The gage must freely pass between the float and the horizontal surface with no more than 1/16 in. clearance. Refer to FUEL PUMP MODULE .

To verify the function and calibration of the sending unit, refer to FUEL GAUGE AND TANK SENDER UNIT CALIBRATION AND ELECTRICAL CIRCUIT CHECK .
Install the electrical connector from the pump module to the sender unit. Push firmly to engage.

Fig 1: Installing Electrical Connector
Courtesy of GENERAL MOTORS CORP.
Install the fuel pump module and tank. Refer to FUEL TANK and FUEL PUMP MODULE .
Perform the "Service Bay Diagnostic Test" for the evaporative emission system using the Tech-2 7000081-SAT3. This test will verify the integrity of the vapor handling areas of the fuel system.