W 3500 L4-4.8L DSL Turbo (1999)
Fuel Tank Unit: Service and Repair
FUEL TANK UNIT REPLACEMENT
The fuel tank unit is a float-controlled variable resistor (rheostat). It is mounted on the top of the fuel tank and has a float arm extending inside the tank.
The position of the float moves the float arm across the rheostat, thus determining the amount of current sent to the fuel gage in the vehicle. Some models
use a protective top to shield the top of the fuel tank unit.
If the fuel tank unit or the dash fuel gage has become inoperative, the only remedy is to replace the inoperative unit.
For checking or diagnosis of fuel tank unit. refer to procedure under the heading of METER AND WARNING/INDICATOR LIGHT.
For dash gage replacement, refer to applicable heading under METER AND WARNING/INDICATOR LIGHT
Remove or Disconnect (Figures 14 and 15)
1. Battery cable.
2. Wires from the top of the fuel tank unit(1).
3. Fuel tank unit (1).
Install or Connect (Figures 14 and 15)
1. Fuel tank unit (1) into the fuel tank (2), Rotate the fuel tank (Round type) to the correct position.
NOTICE: When fasteners are removed, always reinstall them at the same location from which they were removed. If a fastener needs to be
replaced, use the correct part number fastener for that application. If the correct part number fastener is not available, a fastener of equal size and
strength (or stronger) may be used. Fasteners that are not reused, and those requiring thread locking compound will be called out. The correct
torque value must be used when installing fasteners that require it. If the above conditions are not followed, parts or system damage could result.
