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TSB
03-21-27
  • FUEL SYSTEM - 7.3L DIRECT INJECTION (DI) TURBO DIESEL - NO RETURN FUEL FLOW TO FUEL TANK - BEGINNING WITH VEHICLES BUILT 2/9/94
  • 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
Publication Date: October 6, 2003

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.

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