Fuel Gauge - Intermittently Shows Increase In Fuel Level
91ford20
Article No.
91-13-4
06/26/91
GAUGE - FUEL - ELECTRONIC - SHOWS FUEL INCREASES OR DISPLAYS "CO" INTERMITTENTLY - VEHICLES BUILT FROM 6/1/89 TO 1/15/90
FORD: 1989-90 TAURUS, THUNDERBIRD
LINCOLN-MERCURY: 1989-90 CONTINENTAL, COUGAR, MARK VII, SABLE, TOWN CAR
LIGHT TRUCK: 1989-90 AEROSTAR
This TSB article is being republished in its entirety to correct the fuel pump/sender part number listed for the 1989 Taurus/Sable.
ISSUE: The electronic instrument cluster (EIC) fuel gauge may intermittently show an increase in the fuel level or display circuit open "CO". This happens when the fuel tank level is above 1/2 full. The condition is caused by either an intermittent high resistance contact or an open circuit internal to the fuel sender unit.
ACTION: Perform the diagnostic procedures outlined in the appropriate Shop Manual, Sections 33-05 for Cars and 13-01A for the Aerostar to determine if a new fuel pump/sender is required.
1. Replace the fuel sender assembly. Refer to the appropriate Shop Manual, Sections 24-35 for cars and 13-03 for the Aerostar for service details.
FUEL PUMP/SENDER APPLICATION CHART
MODEL
YEAR APPLICATION DESCRIPTION PART NUMBER
1989 Taurus/Sable Fuel Pump/Sender F0DZ-9H307-C
1990 Taurus/Sable Fuel Pump/Sender F0DZ-9H307-A
1989-90 Continental Fuel Pump/Sender E90Z-9H307-A
1989-90 Mark VII Fuel Pump/Sender E5LY-9275-A
1989 Town Car Fuel Pump/Sender E5VY-9275-A
1990 Town Car Fuel Pump/Sender F0VY-9H307-C
1989-90 Thunderbird/Cougar Fuel Pump/Sender F1SZ-9H307-B
1989-90 Aerostar Fuel Pump/Sender E99Z-9H307-A
PART NUMBER PART NAME CLASS
F0DZ-9H307-C Fuel Pump/Sender C
E90Z-9H307-A Fuel Pump/Sender B
F0DZ-9H307-A Fuel Pump/Sender B
E5LY-9275-A Fuel Pump/Sender R
E5VY-9275-A Fuel Pump/Sender BM
F0VY-9H307-C Fuel Pump/Sender B
F1SZ-9H307-B Fuel Pump/Sender B
E99Z-9H307-A Fuel Pump/Sender B
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 90-7-11
WARRANTY STATUS: Eligible Under Basic Warranty
Coverage, Major Component
Warranty Coverage
OPERATION DESCRIPTION TIME
911304A Replace Fuel Pump/Sender 1.5 Hrs.
- 1990 Town Car,
Thunderbird, Cougar
911304A Replace Fuel Pump/Sender 1.2 Hrs.
- Aerostar
911304A Replace Fuel Pump/Sender 1.0 Hr.
- Continental, 1989 Town
Car
911304A Replace Fuel Pump/Sender 0.9 Hr.
- Taurus, Sable, Mark VII
DEALER CODING
BASIC PART NO. CONDITION CODE
9H307 28
OASIS CODES: 204000, 204100, 404000