S15/T15 Sonoma P/U 2WD V6-4.3L VIN X (1998)
Fuel Gauge: Customer Interest
Fuel Gauge - Incorrect Readings
File In Section: 08 - Body and Accessories
Bulletin No.: 99-08-49-004
Date: March, 1999
TECHNICAL
Subject:
Incorrect Fuel Gauge Readings
(Reprogram Vehicle Control Module with Revised Calibration)
Models:
1998*-99 Chevrolet and GMC S/T Pickup and 2 Door Utility Models with 4.3L Engine (VINs W, X - RPOs L35, LF6)
*RPO ZN4 Only
Built Prior to the Following VIN Breakpoints:
Condition
Some owners may comment on incorrect fuel gauge readings.
The fuel gauge may read empty (E) with approximately 1/3 of a tank of fuel remaining, or the fuel gauge rarely reaches the full (F) mark when the fuel
tank is filled.
Correction
Reprogram the vehicle control module (VCM) with the revised Fuel System Calibration. Use the appropriate calibration listed below. Refer to the latest
Tech line information for programming procedures.
Calibration Information
Calibration P/N (New)
Application
09374032
(Fuel System Calibration)
S/T 100 (Pickup) & LF6/L35
09374033
S/T 100 (2 Door Utility)
(Fuel System Calibration)
& L35
Important:
These calibrations are not available from GMSPO. These calibrations are available on 1999 Techline CD ROM Disc 5 and later.
Warranty Information
For vehicle repaired under warranty, use:
Labor 0peration
Description
Labor Time
Prom -
Use published
J6355
Reprogramming
labor
(On Car)
operation time
