Fuel Tank Unit: Description and Operation

Description:

DESCRIPTION
The fuel sender has a float, wire float arm, and a rheostat.

OPERATION
Fuel level is sensed by the position of the float and float arm which operate the 90 ohm rheostat. As the float position changes, the amount of current passing through the rheostat varies, thus changing the gage reading on the instrument panel.

The electric fuel lift pump mounts on the inside of the left frame rail, and is used to deliver fuel at a low pressure (at least 3 psi or 21 kPa) at the rate of 0.24 liter (1/2 pint) in 15 seconds (15 GPH). The lift pump is controlled by the PCM.


- The fuel sender is located inside the fuel tank and is attached to the top of the fuel tank.