F 250 4WD Pickup V8-7.3L DSL Turbo VIN K (1994)
Fuel Pressure Regulator: Customer Interest
Fuel System - No Fuel Return
Article No.
03-21-27
10/06/03
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FUEL SYSTEM - 7.3L DIRECT INJECTION (DI)
TURBO DIESEL - NO RETURN FUEL FLOW TO
FUEL TANK - BEGINNING WITH VEHICLES BUILT
2/9/94
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LOW PERFORMANCE/LACK OF POWER - 7.3L
DIRECT INJECTION (DI) TURBO DIESEL - NO
RETURN FUEL FLOW TO FUEL TANK - BEGINNING
WITH VEHICLES BUILT 2/9/94
FORD:
1994-1995 F SUPER DUTY, F-250, F-350
1995 E-350
Article 97-11-18 is being republished in its entirety as part of a consolidated 7.3L diagnostic aid booklet.
ISSUE
Some vehicles may exhibit a lack of power and/or low performance condition, caused by no return fuel flow to the fuel tank. This condition can be
identified while performing the "Air in the Fuel System" test from the Performance Diagnostic Sheet. This is due to a restricted orifice or clogged
strainer screen. This TSB article does not apply to 1996 and later vehicles.
ACTION
Remove the fuel pressure regulator assembly to inspect the return orifice and strainer screen for debris. Refer to the following Service Procedure for
details.
SERVICE PROCEDURE
Refer to Figure 1.
