LSS V6-3.8L VIN K (1997)
Fuel Gauge Sender: Technical Service Bulletins
Instruments - Revised Fuel Gauge Diagrams & Diagnostics
File In Section: 8 - Chassis/Body Electrical
Bulletin No.: 73-81-10
Date: January, 1997
SERVICE MANUAL UPDATE
Subject:
Sections 8A-80/8A-81 - Revised Fuel Level Sender Schematics and Fuel Gauge Diagnostic Charts
Models:
1996 Buick LeSabre
1997 Buick LeSabre Built - After VIN 463323 with WA2
1997 Buick Park Avenue, Riviera
1996 Oldsmobile Eighty Eight with U2E Cluster
1997 Oldsmobile Aurora, Eighty Eight, LSS, Regency
1996 Pontiac Bonneville with UB3 Cluster
1997 Pontiac Bonneville
This bulletin is being issued to revise the schematics and diagnostic charts in Sections 8A-80 and 8A-81 of the appropriate Service Manuals as follows:
^
For each 1997 vehicle listed above, the correct fuel level resistance is 40 ohms to 250 ohms. The attached schematics and diagnostics charts
incorporate this change.
^
Page 8A-81-42 of the 1997 G-Car Service Manual should be changed as follows to reflect the correct fuel level resistance (40 ohms to 250 ohms):
Fuel Display
The fuel level sensor provides a signal to the instrument cluster that is proportional to the fuel level. With a full tank, the fuel gauge sender resistance is
250 ohms; with an empty tank, the resistance is near 40 ohms. The instrument cluster converts the analog signal from the fuel gauge sender to a digital
signal that controls the air core fuel gauge display.
^
The chart titled "Fuel Gauge Does Not Operate Properly (97 Buick, Pontiac)" includes several improvements to the corresponding charts in the
1997 "H" Service Manual.
^
The 1996 charts titled "Fuel Gauge Does Not Operate Properly" include several improvements to the corresponding charts in the 1996 "C/H"
Service Manual. (These charts apply only to the 1996 "H" vehicles equipped with fuel level modules.)
Please use the attachments to replace the existing pages in the appropriate Service Manuals.
