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All Technical Service Bulletins for Fuel Gauge Sender: > < Fuel Gauge - Intermittently Shows Increase In Fuel Level|Page 8977
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Fuel Gauge Sender: Customer Interest
Fuel Gauge - Occasionally Sticks In FULL Position

GAUGE-FUEL-OCCASIONALLY STICKS IN "FULL" POSITION

Article No. 89-14-11

FORD:

1989 THUNDERBIRD

LINCOLN-MERCURY: 1989 COUGAR

ISSUE:

A fuel gauge that ocassionally sticks in the "FULL" position may be caused by a binding fuel pump float assembly. The fuel pump float
binds on the inner surface of the fuel tank and holds the float in the "FULL" position. This is most likely to occur when driving on unpaved
or rough roads.

ACTION:

Modify the fuel pump float to prevent the binding condition. Refer to the 1989 Thunderbird/Cougar Shop Manual, Section 24-12 for
removal and installation instructions.

1.

Remove the fuel pump assembly.

2.

Unscrew the nut from the end of the float rod assembly.

3.

Remove the float from the rod.

4.

Using a sharp knife, cut 3/8" to 1/2" (9.525 mm to 12.7 mm) off the end of the float.

5.

Reinstall the shortened float on the float rod.

6.

Install float retaining nut.

NOTE:

ALLOW CLEARANCE BETWEEN THE RETAINING NUT AND FLOAT SO THAT THE FLOAT SPINS FREELY.

7.

Using diagonal cutters, trim the float rod so that it is flush with the retaining nut.

8.

Reinstall the fuel sender.

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage

OPERATION      DESCRIPTION

TIME

891411A

Modify Float

1.3 Hrs.

DEALER CODING 
BASIC PART NO.   CONDITION CODE

9H307

41

OASIS CODES:

2300, 2310, 2400

All Technical Service Bulletins for Fuel Gauge Sender: > < Fuel Gauge - Intermittently Shows Increase In Fuel Level|Page 8977