Express 3/4 Ton Van V8-4.8L VIN V (2003)
Fuel Gauge Sender: All Technical Service Bulletins
Fuel System - Cranks But No Start/Inaccurate Fuel Gauge
Bulletin No.: 04-08-49-018E
Date: January 05, 2005
TECHNICAL
Subject:
Cranks But No Start, Stall, Inaccurate/Incorrect Fuel Gauge Reading, No Fuel, Vehicle is Out of Fuel and Fuel Gauge Reads Above Empty (Replace
Fuel Level Sensor)
Models:
2001-2004 Cadillac Trucks
1999-2004 Chevrolet and GMC Trucks
with Gasoline Engine (VINs Z, X, V, T, U, N, G, 6, 8 - RPOs LU3, LR4, LM7, LQ4, LQ9, L59, L18,LK5 L52)
Attention:
Parts are currently available for vehicles with Variable Fuel (VIN Z - RPO L59) vehicles. Please refer to Corporate Bulletin Number 04-06-04-01 2B
or newer for Variable Fuel (VIN Z - RPO L59) vehicles.
Supercede:
This bulletin is being revised to include information on the Chevrolet Colorado and the GMC Canyon. Please discard Corporate Bulletin Number
04-08-49-018D (Section 08 - Body and Accessories).
Condition
Some customers may comment on the vehicle stalling and will not restart, vehicle ran out of fuel, vehicle appears to be out of fuel but the fuel gauge
reads above empty. The fuel gauge may read 1/4 tank.
Cause
Contamination on the fuel sending card may cause inaccurate/incorrect fuel gauge readings.
Correction
Follow the service procedure below for diagnosis and repair of this concern.
1.
Confirm that the vehicle is actually out of fuel.
^
If the vehicle is not out of fuel but Engine Cranks but Does Not Run, refer to the appropriate Service Information.
^
If the vehicle is out of fuel and the gauge does not read empty, test the fuel gauge. Refer to the following information:
-
Fuel Gage Inaccurate or Inoperative Single Tank
-
Fuel Gage Inaccurate or Inoperative Dual Tanks
-
Fuel Gage Inaccurate or Inoperative Colorado and Canyon
2.
If testing reveals that the fuel gauge is operating correctly, replace the fuel sensor assembly and auxiliary tank fuel level sensor if equipped.
3.
Replace the fuel level sensor. Refer to the following appropriate service information:
^
Fuel Level Sensor Replacement 4.8L and 5.3L Engines
^
Fuel Level Sensor Replacement 6.0L Engine - Front Tank
^
Fuel Level Sensor Replacement 6.0L Engine - Rear Tank
^
Fuel Level Sensor Replacement 8.1L vehicles with Front Tank
^
Fuel Level Sensor Replacement 8.1 L vehicles with Rear Tank
