Fuel Tank Sending Unit

With unit removed from tank proceed as follows: Using an ohmmeter with a 0 to 100 ohm scale, connect one lead to body of sending unit, and other lead to terminal in center of unit. Hold unit so float arm contacts EMPTY stop. The ohmmeter should read 73 ohms ±12 ohms (except 1966-69 Imperials which should read 66 ohms ±11.5 ohms). Raise arm to FULL stop. The reading should now be 9.6 ohms ±1 ohm (except 1966-69 Imperials which should read 2.2 ohms ±.5 ohms). If unit does not perform to these specifications inspect the stops or arm for possible distortion. If not physical defect can be found, unit must be replaced.