Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Fuel Pump Relay: All Technical Service Bulletins
Fuel Pump - Buzzing/Humming After Engine Shut Down
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NO START - 1.9L, 2.3L, 3.0L, 3.8L, 4.9L, 5.0L, 5.8L, 7.5L - LOW STATE OF BATTERY CHARGE
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BATTERY - DISCHARGED - 1.9L, 2.3L, 3.0L, 3.8L, 4.9L, 5.0L, 5.8L, 7.5L
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FUEL PUMP - NOISY - 1.9L, 2.3L, 3.0L, 3.8L, 4.9L, 5.0L, 5.8L, 7.5L
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NOISE - "BUZZING" OR "HUMMING" FROM FUEL PUMP AFTER ENGINE IS TURNED OFF
Article No. 90-18-3
FORD:
1983-90 CROWN VICTORIA, ESCORT, EXP, MUSTANG, TEMPO, THUNDERBIRD 1986 LTD 1986-90 TAURUS
LINCOLN-MERCURY:
1983-87 LYNX
1983-90 CONTINENTAL, COUGAR, GRAND MARQUIS, MARK VII, TOPAZ, TOWN CAR 1985-86 CAPRI,
MARQUIS 1986-90 SABLE
LIGHT TRUCK:
1983-90 BRONCO II, BRONCO, ECONOLINE, F-150, F-250, F-350, RANGER 1988-90 F SUPER DUTY
ISSUE:
A "buzzing" or "humming" noise from the fuel pump may occur after the engine has been shut off. There may also be a no start condition or a
discharged battery. These conditions are caused by a sticking fuel pump relay.
ACTION:
Install a new fuel pump relay. Refer to the following procedure for service details.
1.
Check the fuel pump relay circuit for proper operation. Refer to the appropriate EVTM for troubleshooting details.
2.
Install a new fuel pump relay, if the old one is defective.
3.
Check the vehicle for proper operation.
PART NUMBER
PART NAME
F19Z-9345-A
Fuel Pump Relay Assy.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS:
Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION
TIME
901803A
1985-86 LTD/Marquis
0.6 Hr.
(includes pinpoint test)
901803A
1990 Town Car (includes
0.4 Hr.
pinpoint test)
901803A
All Other Cars (includes
0.5 Hr.
pinpoint test)
901803A
All Trucks (includes pinpoint
0.5 Hr.
test)
DEALER CODING
BASIC PART NO. CONDITION CODE
9345
09
OASIS CODES:
404000, 603300, 203000, 203100, 702000
