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lamontgomery
lamontgomery, Ford Mechanic
Category: Ford
Satisfied Customers: 467
Experience:  14 years experience, 2000-2006 Senior Master, ASE master in Truck and Auto, Level 1 Fire mechanic
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I have a 95 powerstroke and it will start running rough ...

Resolved Question:

I have a 95 powerstroke and it will start running rough like it is starving for fuel, you can stop and let it idle for 15 or 20 seconds then floor it and it will blow some smoke out the tail pipe and usually return to a normal idle, only to do it again a mile or two down the road. Changed the cam sensor but no change. Any help would be grateful. Thank you
Submitted: 9 years ago.
Category: Ford
Expert:  lamontgomery replied 9 years ago.

You may have a problem with the high pressure oill system on your truck. This TSB should help.

Please accept my answer if you are satisfied.

Thank you,

Loy

TSB
98-23-13
  • HESITATION/STUMBLE - POOR SEAL ON INJECTOR O-RINGS - 7.3L DI TURBO
  • IDLE - ROUGH - POOR SEAL ON INJECTOR O-RINGS - 7.3L DI TURBO
  • LACK OF POWER/POOR PERFORMANCE - POOR SEAL ON INJECTOR O-RINGS - 7.3L DI TURBO
  • STALLS - POOR SEAL ON INJECTOR O-RINGS - 7.3L DI TURBO
  • OIL - EXCESSIVE OIL CONSUMPTION - POOR SEAL ON INJECTOR O-RINGS - 7.3L DI TURBO
Publication Date: NOVEMBER 10, 1998

LIGHT TRUCK:1994-1997 F SUPER DUTY
1994-1998 F-250 HD, F-350
1995-1998 ECONOLINE

This TSB article is being republished in its entirety to include vehicles through the 1998 model year.

ISSUE:

On vehicles with a 7.3L direct injection (DI) turbo diesel engine, one or more of the following concerns may be present:

  • Rough Idle
  • Stalling
  • Hesitation/Stumble
  • Loss/Lack of Power
  • Poor Fuel Economy
  • Excessive Oil Consumption

These concerns may be caused by the injector cushion O-rings deteriorating, resulting in a poor seal. This condition cannot be detected with conventional diagnostics (i.e., it will not produce diagnostic codes with either Super Star or New Generation Star Testers).

ACTION:

Remove the injectors, check for deterioration of the cushion O-ring. If necessary, replace the O-ring with a new O-ring which has a more robust design and should not deteriorate under severe conditions. Refer to the following Service Procedure for details.

SERVICE PROCEDURE

  1. If no Diagnostic Trouble Codes (DTCs) are found and normal diagnostics do not lead to a solution, remove the injectors according to the DI Turbo Service Manual.
  2. Check for wear or deterioration of the cushion O-ring. If excessive wear is found, replace the O-ring with a new blue O-ring found in the O-ring Kit (F8TZ-9229-AA). Refer to the Instruction Sheet included in the kit.

    NOTE:IF ONE O-RING IS REPLACED ALL O-RINGS AND SEALS MUST BE REPLACED. IF ONE INJECTOR SEAL IS SERVICED ALL THE INJECTOR O-RINGS AND SEALS MUST BE SERVICED.

    The O-ring Kit includes the following:

    • One (1) Upper Backup Ring
    • One (1) Upper Cushion Ring
    • One (1) Upper Injector Seal
    • One (1) Seal
    • One (1) Lower Injector Seal
    • One (1) Injector Gasket
    • One (1) Instruction Sheet


PART NUMBERPART NAME
F8TZ-9229-AAO-Ring Kit

OTHER APPLICABLE ARTICLES:

NONE

SUPERSEDES:

98-17-19

WARRANTY STATUS:

Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage, Emissions Warranty Coverage, And Powerstroke Diesel Engine Warranty Coverage

OPERATIONDESCRIPTIONTIME
982313AReplace Injector O-rings - F-Series5.2 Hrs.
982313BReplace Injector O-rings - Econoline4.9 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
9A288D8

OASIS CODES:

401000, 607000, 607400, 608000, 608400, 610000, 610500, 611000, 611500, 614000, 614500


 

Copyright © 1998 Ford Motor Company

 

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