Fuel Pump - Whining Noise
91ford17
Article No.
91-8-15
04/17/91
^ FUEL PUMP - "WHINING" NOISE - 5.0L ENGINE
^ NOISE - "WHINING" FUEL PUMP - 5.0L ENGINE
FORD: 1990-91 CROWN VICTORIA
LINCOLN-MERCURY: 1990 TOWN CAR 1990-91 GRAND MARQUIS
This TSB article is republished in its entirety to delete the reference in Step # 5 about throwing away the old fuel pump.
ISSUE: A constant "whining" noise heard in the passenger compartment may be caused by the electric fuel pump inside the fuel tank. The "whining" noise is noticeable at engine idle and low speed driving only. This is caused by lack of a sound deadener material on the fuel tank.
ACTION: Refer to the following corrective action chart for service details.
NOTE: TO DECOUPLE THE FUEL LINES AT THE FUEL PUMP, USE TOOL T90T-9550-B FOR 5/16" LINES AND TOOL T90T-9550-C FOR 3/8" LINES.
CORRECTIVE ACTION CHART
MODEL
YEAR VEHICLE BUILD PERIOD PROD
1990 Crown Victoria, Job 1 to 4/1/90 A
Grand Marquis
1991 Crown Victoria, 4/1/90 to 6/25/90 A
Grand Marquis
1991 Crown Victoria, 6/25/90 to 9/6/90 B
Grand Marquis
1990 Town Car Job 1 to 6/25/90 A
1990 Town Car 6/25/90 to 8/27/90 B
NOTE: ORDER THE FUEL AND SENDER SOUND DEADNER KIT TO PERFORM PROCEDURE A. THE INSULATORS ARE INCLUDED IN THE KIT. TO PERFORM PROCEDURE B, ORDER THE INSULATORS SEPARATELY.
PROCEDURE A
1. Make sure that the noise is coming from the fuel pump and sender.
2. Drain the fuel from the tank into a suitable container for reuse later.
3. Remove the fuel tank from the vehicle. Refer to the 1990 Lincoln Town Car, Crown Victoria, Grand Marquis Shop Manual, Section 24-50, for service details.
4. Remove the fuel pump and sender assembly and sender gasket from the fuel tank. Refer to the 1990 Lincoln Town Car, Crown Victoria, Grand Marquis Shop Manual, Section 24-35, for the removal procedure.
5. Keep the old fuel pump for warranty payment purposes.
NOTE: IF THIS REPAIR IS CLAIMED ON WARRANTY, THE DEALER WILL RECEIVE A 700 RECALL TAG ISSUED BY THE WARRANTY PARTS RETURN CENTER. IF THE DEALER DOES NOT HAVE THE PART, A CHARGEBACK FOR THE ENTIRE REPAIR IS GENERATED.
Figure 1:
6. Clean the fuel tank gasket mounting surface and sound deadener pad attaching areas, Figure 1, with cleaner (B7A-19521-AA) or equivalent.
7. Remove the protective backing from the four (4) sound deadener pads. They have adhesive under the protective backing.
8. Install the four (4) sound deadener pads on the fuel tank as shown in Figure 1.
9. Install a new sender gasket from the kit.
10. Install a new fuel pump and sender assembly in the fuel tank.
11. Reinstall the fuel tank in the vehicle.
12. Refill the tank with the fuel removed in Step # 2.
PROCEDURE B
1. Make sure that the noise is coming from the fuel pump and sender.
2. Drain the fuel from the tank into a suitable container for reuse later.
3. Remove the fuel tank from the vehicle. Refer to the 1990 Lincoln Town Car, Crown Victoria, Grand Marquis Shop Manual, Section 24-50, for service details.
4. Clean the fuel tank gasket mounting surface and sound deadener pad attaching areas, Figure 1, with cleaner (B7A-19521-AA) or equivalent.
5. Remove the protective backing from the four
(4) sound deadener pads. They have adhesive under the protective backing.
6. Install the four (4) sound deadener pads on the fuel tank as shown in Figure 1.
7. Reinstall the fuel tank in the vehicle.
8. Refill the tank with the fuel removed in Step # 2.
PART NUMBER PART NAME CLASS
F0VY-9H307-D Fuel Pump & Sender Assy. BG
Sound Deadener Service Kit
(Lincoln Town Car)
F0AZ-9H307-D Fuel Pump & Sender Assy. BG
Sound Deadener Service Kit
(Crown Victoria & Grand
Marquis)
F1AZ-9A068-A Insulator - All B
F1AZ-9A068-B Insulator - All B
F1AZ-9A068-C Insulator - All B
B7A-19521-AA Cleaner B
OTHER APPLICABLE ARTICLES: None
SUPERSEDES: 90-26-6
WARRANTY STATUS: Eligible Under ESP, Basic
Warranty Coverage, Major
Component Warranty Coverage
OPERATION DESCRIPTION TIME
910815A Install Fuel Pump Kit - 1.6 Hr.
Grand Marquis/Crown Victoria
910815A Install Fuel Pump Kit - Town 1.8 Hr.
Car
910815B Install Insulators Only - 1.3 Hr.
Crown Victoria/Grand Marquis
910815B Install Insulators Only - 1.6 Hr.
Town Car
DEALER CODING
BASIC PART NO. CONDITION CODE
9H307 56
OASIS CODES: 702000, 702200, 702300, 404000