1990-98 ECONOLINE. 1990-99 F-150, F-250 LD, RANGER. 1991-98 EXPLORER ….
Check the appropriate Electrical and Vacuum Troubleshooting Manual (EVTM) (or

TSB 98-7-3 FORD: 1990-93 TEMPO 1990-97 PROBE, THUNDERBIRD 1990-98 ESCORT, TAURUS 1990-99 CROWN VICTORIA, MUSTANG 1997-98 CONTOUR LINCOLN-MERCURY: 1990-92 MARK VII 1990-93 TOPAZ 1990-96 CONTINENTAL 1990-97 COUGAR 1990-98 SABLE, TOWN CAR 1990-99 GRAND MARQUIS 1991-98 TRACER 1997-98 MYSTIQUE 1997-99 MARK VIII LIGHT TRUCK: 1990 BRONCO II 1990-96 BRONCO 1990-97 AEROSTAR, F SUPER DUTY, F-250 HD, F-350 1990-98 ECONOLINE 1990-99 F-150, F-250 LD, RANGER 1991-98 EXPLORER 1993-98 VILLAGER 1997-98 EXPEDITION, MOUNTAINEER, WINDSTAR 1998 NAVIGATOR ISSUE: A whining/buzzing noise in the speake 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: Itall an electronic noise Radio Frequency Interference (RFI) filter (F1PZ-18B925-A) on the fuel pump iide 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: SOME LIGHT TRUCKS REQUIRE ONE (1) RFI FILTER FOR EACH IN-TANK ELECTRIC FUEL PUMP ON MULTI-TANK VEHICLES. TEST PROCEDURE Fuel pump radio noise is relatively cotant and changes only slightly with vehicle speed. If the frequency of the noise varies or the noise

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