Fuel System - Cranks but No Start/Inaccurate Fuel Gauge

Bulletin No.: 04-08-49-018D

Date: December 06, 2004

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:
2004-2005 HUMMER H2

with Gasoline Engine (VINs Z, X, V, T, U, N, G - RPOs LU3, LR4, LM7, LQ4, LQ9, L59 or L18)

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 regarding Variable Fuel (VIN Z - RPO L59) vehicles. Please discard Corporate Bulletin Number 04-08-49-018C (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.

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.





Parts Information

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

Warranty Information





For vehicles repaired under warranty, use the table.





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