For 1990-2009 cars

# 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)

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

| 2004-2005 HUMMER H2

| 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 04-06-04-012B or newer for Variable Fuel (VIN Z -- RPO L59) vehicles.

This bulletin is being revised to include information on the Chevrolet Colorado and the GMC Canyon. Please discard Corporate Bulletin Number 04-08-49-018 D (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 (SI Document ID #850196)

- | Fuel Gage Inaccurate or Inoperative Dual Tanks (SI Document ID #850195)

- | Fuel Gage Inaccurate or Inoperative HUMMER H2 (SI Document ID #826250)

- | Fuel Gage Inaccurate or Inoperative Colorado and Canyon (SI Document ID #1292631)

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 (SI Document ID #1332662)

• | Fuel Level Sensor Replacement 6.0L Engine - Front Tank (SI Document ID #1333086)

• | Fuel Level Sensor Replacement 6.0L Engine - Rear Tank (SI Document ID #1333087)

• | Fuel Level Sensor Replacement 8.1L vehicles with Front Tank (SI Document ID #1333104)

• | Fuel Level Sensor Replacement 8.1 L vehicles with Rear Tank (SI Document ID #1333105)

• | HUMMER H2 vehicles refer to Fuel Level Sensor Replacement (SI Document ID #861702)

• | Fuel Level Sensor Replacement 2.8L Engine (SI Document ID #1220030)

• | Fuel Level Sensor Replacement 3.5 L Engine (SI Document ID #1219948)

### Parts Information

Parts are in limited quantities. Please DO NOT order parts for stock.

Part Number | Description
--- | ---
89060635 | Sensor Assembly, Aux Tank, Rear 2001-2003 360364 0353, Cab/Chassis, Reg. and Ext Cab with LQ4 or L18 and minus NQZ (with aux fuel tank)
89060636 | Sensor Assembly, Main Tank, Side 2001-2003 360364 0353, Cab/Chassis, Reg. and Ext Cab with LQ4 or L18 and without K53 (robust fuel system)
89060637 | Sensor Assembly, Main Tank, Side 2000-2003 159259 0636, C/K, Long Wheel Base Utility with LM7 or LQ4 or LQ9 or L18 and without K53 (robust fuel system)
89060638 | Sensor Assembly, Main Tank, Side 2000-2003 157 06, C/K, Short Wheel Base Utility with LM7 or LQ4 or LQ9 or L18 and without K53 (robust fuel system)
89060640 | Sensor Assembly, Main Tank, Side 1999-2003 100200300 034353, C/K, 2 Dr, 4 Dr and Ext Cab Pickup with LU3 or LR4 or LM7 or LQ4 or LQ9 or L18 and -- K53 (without robust fuel system) 2004

100 0353, C/K, 2 Dr and Ext Cab

with LU3 and without K53 (robust fuel system)

89060642 | Sensor Assembly, Main Tank, Rear 2000-2003 259 0636, C/K, Long Wheel Base Utility with LM7 or LQ4 or LQ9 or L18 and without K53 (robust fuel system)
88965384 | Sensor Assembly 2004-2005 HUMMER H2
88965817 | Sensor Assembly 2004-2005 Colorado / Canyon

Parts are currently available from GMSPO.

### Warranty Information

For vehicles repaired under warranty, use:

Labor Operation | Description | Labor Time
--- | --- | ---
L1197 | Sensor, Fuel Level (Tank Unit) - Replace | Use published labor operation time