Uplander FWD V6-3.5L VIN L (2006)
Fuel Gauge Sender: Customer Interest
Fuel Gauge - Reads Empty When Tank is Full/DTC P0463
Bulletin No.: 07-08-49-013
Date: August 16, 2007
TECHNICAL
Subject:
Fuel Gauge Reads Empty When Fuel Tank is Full, Low Fuel Light Comes On When Fuel Tank Is Full, DTC P0463 Stored (Replace Fuel Level Sensor)
Models:
2005-2007 Buick Terraza
2005-2007 Chevrolet Uplander
2005-2007 Pontiac Montana SV6
2005-2007 Saturn Relay
Condition
Some customers may comment on one or more of the following conditions:
The fuel gauge is inoperative or fluctuates after filling up the fuel tank (fuel gauge will jump up and down to empty).
The fuel gauge reads empty when the fuel tank is full.
The low fuel light comes on when the fuel tank is full.
The Service Engine Soon/Check Engine light is illuminated.
Technicians also may find DTC P0463 stored.
Cause
This condition may be caused by the wiper fingers in the fuel level sensor moving beyond the printed circuit on the ceramic card, which may cause an
open circuit in the fuel level sensor when the fuel tank is full or overfilled.
Correction
Follow Corporate Bulletin Number 01-08-45-005E before replacing the fuel level sensor.
Replace the old fuel level sensor that has the open circuit with a new fuel level sensor that has the improved ceramic card. Refer to Fuel Level Sensor
Replacement in SI.
