Instruments - Inaccurate Fuel Gauge

Classification:
EL93-017

Reference:
NTB93-094a

Date:
August 12, 1993

This amended version of NTB93-094 updates information in the fuel gauge sender parts information. Please discard NTB93-094.

SENTRA/NX FUEL GAUGE INACCURATE

APPLIED VEHICLE(s):
1991-93 Sentra (B13) and NX (KB13)

APPLIED DATE(s):
Any ZAMA B13/KB13, built before 1/1/93.
Any SMYRNA B13 built before 3/1/93

SERVICE INFORMATION

Some customers may complain of the following fuel gauge symptoms:

1. Fuel gauge will not read FULL after filling the tank.

2. Fuel gauge reads EMPTY, but customer could only add 8-9 gallons of fuel.

3. Fuel gauge drops off FULL too fast; reads 3/4 after driving only 25 to 40 miles.

4. Low fuel light does not illuminate, even when the gauge reads EMPTY [Sentra GXE, SE, & SE-R; NX2000 models, only. Other models do not have a low fuel light].

SERVICE PROCEDURE





Remove Sending Unit, located in the fuel tank [Reference: Sentra/NX Service Manual Pages, FE-03 and FE-04. Replace with Countermeasure sending unit - listed below. The Fuel Gauge Sending Unit Seal should be replaced prior to reinstalling the Sending Unit. (Figure 1)

SPECIAL NOTE:
Make sure that the fuel pump power connector is fully connected (snapped-clicked into place) during reassembly. If this connector is not fully connected, the grommet can swell and push apart the connector, resulting in a "no fuel pump operation."





PARTS INFORMATION





CLAIMS INFORMATION