Fuel Gauge Fluctuates Between E and 1/4 Tank, Goes from 1/4 to Empty Too Quickly, Excessive Empty Fuel Reserve (Reprogram PCM)
| Subject: | Fuel Gauge Fluctuates Between E and ¼ Tank, Goes From ¼ to Empty Too Quickly, Excessive Empty Fuel Reserve (Reprogram PCM) |
| Models: | 2001-2003 Chevrolet Blazer |
| 2001 GMC Envoy |
| 2001-2003 GMC Jimmy |
This bulletin is being revised to add condition information. Please discard Corporate Bulletin Number 03-08-49-014 (Section 08 -- Body and Accessories).
This bulletin contains three different conditions depending on the model year of the vehicle involved.
Condition #1 (2001 4-Door Only)
Some customers may comment that the fuel gauge goes from ¼ to empty too quickly.
Condition #2 (2002 4-Door Only)
Some customers may comment about excessive empty fuel reserve.
Condition #3 (2003 2-Door and 4-Door)
Some customers may comment that the fuel gauge fluctuates between E and ¼ tank.
Correction
Important: In order to select the correct calibration on some vehicles, you must first identify the cluster part number. This can be done using the Tech 2. DO NOT REMOVE THE CLUSTER.
A new service calibration has been released to correct these conditions. Reprogram the PCM using the new service calibration, which was available from Techline starting August 25, 2003 on the TIS2000 version 9.0 or later. This calibration is an electronic calibration and is not available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
*L1199 | Reprogram PCM to Correct Fuel Gauge Issues | 0.4 hr |
*This is a unique labor operation number for use only with this bulletin. This number will not be published in the Labor Time Guide. | ||
