Fulltext TSBs

Technical Service Bulletins

TSB
02-16-4
  • FUEL SYSTEM – FUEL PUMP “WHINING”/”BUZZING” NOISE COMES THROUGH ENTERTAINMENT OR TWO-WAY RADIO SPEAKER
  • RADIO – ENTERTAINMENT OR TWO-WAY COMMUNICATION – “WHINING”/”BUZZING” NOISE IN SPEAKERS CAUSED BY FUEL PUMP
  • NOISE – “WHINING”/”BUZZING” – COMES THROUGH SPEAKERS OF ENTERTAINMENT OR TWO-WAY RADIO
Publication Date: AUGUST 6, 2002

FORD:
1990-1994 TEMPO
1990-1997 ESCORT, PROBE, THUNDERBIRD
1990-1998 MUSTANG
1990-1999 TAURUS
1990-2002 CROWN VICTORIA
1997-1999 CONTOUR
2001 TAURUS
1990 BRONCO II
1990-1996 BRONCO
1990-1997 AEROSTAR, F SUPER DUTY, F-250 HD, F-350
1990-1999 F-250 LD
1990-2002 ECONOLINE, F-150, RANGER
1991-2002 EXPLORER
1995-2002 WINDSTAR
1997-2003 EXPEDITION
1999-2002 SUPER DUTY F SERIES
2000-2002 EXCURSION, EXPLORER SPORT TRAC, EXPLORER SPORT
2001-2002 ESCAPE
LINCOLN:
1990-1992 MARK VII
1990-1994 CONTINENTAL
1990-2002 TOWN CAR
1998-2003 NAVIGATOR
2002 BLACKWOOD
MERCURY:
1990-1994 TOPAZ
1990-1997 COUGAR
1990-1999 SABLE
1990-2002 GRAND MARQUIS
1991-1997 TRACER
1997-1999 MYSTIQUE
2001 SABLE
1993-2002 VILLAGER
1997-2002 MOUNTAINEER

TSB 01-7-3 is being republished in its entirety to update the model year coverage and vehicle line coverage.

ISSUE:

A “whining”/”buzzing” noise in the speakers of the entertainment radio or two-way radio on vehicles with an in-tank electric fuel pump may be caused by electrical noise from the fuel pump.

ACTION:

Install an electronic noise Radio Frequency Interference (RFI) Filter (F1PZ-18B925-A) on the fuel pump inside the fuel tank. Refer to the following Test Procedure to confirm that the concern exists, then refer to the Service Procedure for repair details.

NOTE:IF THE VEHICLE HAS AN ELECTRONIC RETURNLESS FUEL SYSTEM, DO NOT INSTALL A RFI FILTER INLINE TO THE FUEL PUMP. ONLY VEHICLES WITH MECHANICAL RETURNLESS FUEL SYSTEMS (PRESSURE REGULATOR IN THE TANK), OR SYSTEMS WITH THE PRESSURE REGULATOR ON THE FUEL RAIL SHOULD BE APPROVED FOR THE RFI FILTER INSTALLATION.

NOTE:SOME LIGHT TRUCKS REQUIRE ONE (1) RFI FILTER FOR EACH IN-TANK ELECTRIC FUEL PUMP ON MULTI-TANK VEHICLES.

NOTE:THIS TSB DOES NOT INCLUDE TAURUS FLEXIBLE FUEL VEHICLES (FFVs) OR 1999 RANGER 3.0L FFVs.

TEST PROCEDURE

Fuel pump radio noise is relatively constant and changes only slightly with vehicle speed. If the frequency of the noise varies or the noise comes and goes with the vehicle speed, then it is not the fuel pump and this fix will not be effective. The following procedure will help determine if the fuel pump is the cause of the radio noise:

  1. Turn on the radio before the key is turned on (assuming the radio will operate without the ignition key – you may need to put the ignition key in the Accessory position).
  2. Turn the ignition key to the Run position (do not start the engine).
  3. The fuel pump should run for about 1 second with the key in the Run position with the engine not running. Listen for noise in the radio. If noise is present while the pump is running and stops when the pump stops, then the noise is being generated by the pump and this procedure should help.

SERVICE PROCEDURE

  1. Remove the fuel pump sender assembly from the fuel tank. Refer to the appropriate model year Workshop Manual for removal procedure.
  2. On vehicles without a fuel delivery module, remove the negative and positive connectors from the fuel pump, Figure 1.
    1. Cut the wires to the fuel pump 76mm (3″) from the flange of the fuel pump and discard the wires.
    2. Connect the RFI filter connectors to the spade terminal on the fuel pump.
    3. Cut and solder both the red and black wires of the RFI filter to the red and black wires of the flange. Use Heat Shrink Tubing (F5AZ-14A099-AA) over the solder connections.

      NOTE:HEAT SHRINK TUBING MUST BE USED OVER ALL SOLDERED CONNECTIONS MADE PER THIS TSB. USE SUFFICIENT TUBING (ABOUT 50mm (2″)) OF THE SPECIFIED TYPE TO ENTIRELY COVER EACH SOLDERED CONNECTION AND SHRINK APPROPRIATELY TO PREVENT EXPOSURE OF THE CONNECTIONS.

      NOTE:FOR SOME VEHICLES WITH EXTREMELY LONG FUEL PUMP GROUND WIRE CIRCUITS, IT MAY BE NECESSARY TO SHORTEN THE GROUND WIRE TO A POINT CLOSE TO THE FUEL TANK. IF THE GROUND IS MOVED, BE SURE IT IS SECURE AND PROTECTED FROM CORROSION SINCE IT IS THE OPERATING GROUND FOR THE PUMP. CHECK SERVICE LITERATURE (EVTM, ETC.) FOR GROUND LOCATIONS.

      WARNING:ALL SOLDERING AND HEAT SHRINKING MUST BE COMPLETED AWAY FROM THE FUEL TANK AREA. USE A SOLDERING IRON ONLY FOR SOLDERING AND HEAT GUN ONLY FOR APPLYING SHRINK TUBING.

  3. On light trucks and compact trucks with a fuel delivery module, cut the fuel pump wires to the fuel delivery module 50mm (2″) from the flange and discard the wires, Figure 2.
    1. Cut the connectors from the RFI filter and solder wires to the fuel delivery module (red to red and black to black). Use heat shrink tubing over solder connections.
    2. Solder wires from the RFI filter to the flange wires (red to red and black to black). Use heat shrink tubing over soldered connections.

      NOTE:HEAT SHRINK TUBING MUST BE USED OVER ALL SOLDERED CONNECTIONS MADE PER THIS TSB. USE SUFFICIENT TUBING (ABOUT 50mm (2″)) OF THE SPECIFIED TYPE TO ENTIRELY COVER EACH SOLDERED CONNECTION AND SHRINK APPROPRIATELY TO PREVENT EXPOSURE OF THE CONNECTIONS.

      NOTE:FOR SOME VEHICLES WITH EXTREMELY LONG FUEL PUMP GROUND WIRE CIRCUITS, IT MAY BE NECESSARY TO SHORTEN THE GROUND WIRE TO A POINT CLOSE TO THE FUEL TANK. IF THE GROUND IS MOVED, BE SURE IT IS SECURE AND PROTECTED FROM CORROSION SINCE IT IS THE OPERATING GROUND FOR THE PUMP. CHECK SERVICE LITERATURE (EVTM, ETC.) FOR GROUND LOCATIONS.

      WARNING:ALL SOLDERING AND HEAT SHRINKING MUST BE COMPLETED AWAY FROM THE FUEL TANK AREA. USE A SOLDERING IRON ONLY FOR SOLDERING AND HEAT GUN ONLY FOR APPLYING SHRINK TUBING.

  4. Secure the RFI filter to the fuel pump and sender assembly with a Bundling Strap (95873-S101) to prevent rattling in the tank, Figure 1 and Figure 2.
  5. Reinstall the fuel pump sender assembly into the fuel tank.

    CAUTION:INSTALL NEW GASKETS WHEN REINSTALLING SENDER TO PREVENT LEAKS. REFER TO THE PARTS CATALOG FOR PROPER APPLICATIONS.

  6. Check the appropriate Electrical and Vacuum Troubleshooting Manual (EVTM) (or other service literature) for the location of the fuel pump ground. If ground is more than 0.9m (3′) from the tank, cut wire and ground fuel pump end within 0.9m (3′) of the tank to prevent ground wire from acting as an antenna. Be sure ground is secure and protected from corrosion since it is the operating ground for the fuel pump.
  7. Install the fuel tank in the vehicle as outlined in the appropriate Service or Workshop Manual.

PART NUMBERPART NAME
F1PZ-18B925-ARadio Frequency Interference (RFI) Filter
95873-S101Bundling Strap
F5AZ-14A099-AAHeat Shrink Tubing

OTHER APPLICABLE ARTICLES:

NONE

SUPERSEDES:

01-7-3

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage

OPERATIONDESCRIPTIONTIME
021604AADiagnose And Install RFI Filter 1990-1997 Thunderbird/Cougar2.1 Hrs.
021604BADiagnose And Install RFI Filter 1990-1999 And 2001 Taurus/Sable1.4 Hrs.
021604CADiagnose And Install RFI Filter 1992-1997 Crown Victoria/Grand Marquis/Town Car1.2 Hrs.
021604CBDiagnose And Install RFI Filter 1990-1991 Crown Victoria/Grand Marquis/Town Car1.6 Hrs.
021604CCDiagnose And Install RFI Filter 1998-2002 Crown Victoria/Grand Marquis2.2 Hrs.
021604DADiagnose And Install RFI Filter 1998-2002 Town Car1.9 Hrs.
021604EADiagnose And Install RFI Filter 1990-1998 Mustang1.7 Hrs.
021604FADiagnose And Install RFI Filter 1990-1998 Mustang1.6 Hrs.
021604GADiagnose And Install RFI Filter 1990-1994 Continental1.5 Hrs.
021604HADiagnose And Install RFI Filter 1990 Escort1.6 Hrs.
021604IADiagnose And Install RFI Filter 1991-1996 Escort Tracer0.8 Hr.
021604IBDiagnose And Install RFI Filter 1997 Escort/Tracer1.6 Hrs.
021604JADiagnose And Install RFI Filter 1997 Contour/Mystique0.8 Hr.
021604JBDiagnose And Install RFI Filter 1998-1999 Contour/Mystique1.8 Hrs.
021604KADiagnose And Install RFI Filter 1990-1992 Mark VII2.0 Hrs.
021604LADiagnose And Install RFI Filter 1990-1992 Probe0.8 Hr.
021604LBDiagnose And Install RFI Filter 1993-1997 Probe1.8 Hrs.
021604MADiagnose And Install RFI Filter 1990-2002 Econoline Single Fuel Tank1.6 Hrs.
021604MBDiagnose And Install RFI Filter 1990-1991 Econoline Both Fuel Tanks2.6 Hrs.
021604NADiagnose And Install RFI Filter 1990-1996 Bronco2.0 Hrs.
021604OADiagnose And Install RFI Filter 1991-1994 Explorer1.8 Hrs.
021604OBDiagnose And Install RFI Filter 1995-2002 Explorer1.5 Hrs.
021604PADiagnose And Install RFI Filter 1997-2002 Mountaineer1.5 Hrs.
021604QADiagnose And Install RFI Filter 1995-2002 Windstar1.4 Hrs.
021604RADiagnose And Install RFI Filter 1993-2002 Villager1.9 Hrs.
021604SADiagnose And Install RFI Filter 1997-2003 Expedition/Navigator1.7 Hrs.
021604TADiagnose And Install RFI Filter 1990-1997 Ranger Standard Cab1.3 Hrs.
021604TBDiagnose And Install RFI Filter 1990-1997 Ranger Super Cab1.8 Hrs.
021604TCDiagnose And Install RFI Filter 1998-2002 Ranger 4X41.8 Hrs.
021604TDDiagnose And Install RFI Filter 1998-2002 Ranger 4X21.6 Hrs.
021604UADiagnose And Install RFI Filter 1990-1997 Aerostar1.5 Hrs.
021604VADiagnose And Install RFI Filter 1990 Bronco II1.9 Hrs.
021604WADiagnose And Install RFI Filter 1990-1996 F-150/250/350/Super Duty And 1997 F-350/Superduty Rear1.4 Hrs.
021604WBDiagnose And Install RFI Filter 1990-1996 F-150/250/350/Super Duty And 1997 F-350/Superduty Front1.4 Hrs.
021604WCDiagnose And Install RFI Filter 1990-1996 F-150/250/350/Super Duty And 1997 F-350/Superduty Both Tanks2.1 Hrs.
021604WDDiagnose And Install RFI Filter 1998-2002 F-1501.6 Hrs.
021604XADiagnose And Install RFI Filter 2000-2002 Excursion1.6 Hrs.
021604XBDiagnose And Install RFI Filter 1999-2002 Super Duty F-Series: Front Tank1.6 Hrs.
021604XCDiagnose And Install RFI Filter 1999-2002 Super Duty F-Series: Rear Tank1.5 Hrs.
021604XDDiagnose And Install RFI Filter 1999-2002 Super Duty F-Series: Both Tanks2.7 Hrs.
021604YADiagnose And Install RFI Filter 2001-2002 Escape0.8 Hr.
021604ZADiagnose And Install RFI Filter 2002 Blackwood1.9 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
18B92542

OASIS CODES:

205000, 207000, 404000, 702000, 702300




Figure 1 – Article 02-16-4




Figure 2 – Article 02-16-4


Copyright © 2002 Ford Motor Company