SL L4-1.9L SOHC VIN 9 (1991)
Fuel Gauge Sender: All Technical Service Bulletins
Instruments - Fuel Gage Reads Incorrectly
NO.:
92-T-29
DATE:
June, 1992
GROUP:
Engine
CORP. NO.:
288301
SUBJECT:
Instrument Panel Fuel Gage May Read Incorrectly (Diagnose/Replace Fuel Sender Float)
MODELS
AFFECTED:
All 1991 and 1992 Saturns
CONDITION:
The I/P fuel gage may read incorrectly low when compared to the amount of fuel known to be in the tank. This condition may be noticeable after the
customer fills up the tank and the gage does not read full or when the gage reads empty and less fuel can be added to the fuel tank than expected.
CAUSE:
The float attached to the fuel sender assembly may fill with fuel not allowing it to float on the top of the fuel as designed, but to sink into the fuel giving
an incorrect reading to the I/P fuel gage.
CORRECTIVE
ACTION:
Check instrument panel gage calibration by using procedures located in the "Electrical Power Distribution Service Manual." If readings are incorrect,
repair as required.
If instrument panel gage reads correctly, measure resistance from fuel sender assembly according to procedures under "Fuel Gage Tank Unit Calibration
and Electrical Circuit Test" located in the "Diagnostics and Test Procedures" section of the "Fuel/Air Intake/Exhaust Service Manual."
^
If resistance is above 300 ohms, inspect wiring and connections and repair as necessary.
^
If problem is not found or resistance is less than 300 ohms, visually inspect fuel sender float for cracks and fuel intrusion. If there is evidence
of fuel in the float, replace the float according to the procedures in this bulletin.
^
If there is no evidence of fuel in the float, replace fuel sender assembly with the service replacement part.
PROCEDURES:
1.
Refer to "Fuel Pump Module Removal" procedures in the "Fuel Tank, Pump, Filter Lines and Canister" section of the "Fuel/Air Intake/Exhaust
Service Manual" and remove the fuel pump assembly.
2.
Check the float for evidence of fuel intrusion.
If there is no fuel inside the float, replace the fuel sender assembly. Refer to "Fuel Pump Module Installation" procedures in the "Fuel Tank, Pump, Filter
Lines and Canister" section of the "Fuel/Air Intake/Exhaust Service Manual" and remove the fuel sender assembly.
^
If there is fuel inside the float, proceed to Step 3 of these procedures.
NOTICE:
When removing the float from the hook at the end of the fuel sender assembly's wire arm, use extreme care not to bend the wire arm.
