Fulltext TSBs

Technical Service Bulletins

TSB
07-26-2
  • 6.4L – INTERMITTENT NO START / LACK OF POWER – DTC P0003 AND/OR BLOWN FUSE 74 – BUILT PRIOR – 8/20/2007
Publication Date: December 20, 2007

FORD:
2008 F-Super Duty

ISSUE:

Some 2008 F-Super Duty vehicles built prior to 8/20/2007 equipped with a 6.4L diesel engine may exhibit a lack of power or no start with possible DTC's P0003, P0004 and P0091 caused by circuit CBB12 at the high pressure pump gasket grounding to the high pressure pump body (may also result in fuse 74 being blown).

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

  1. Unplug connector C1926 near the high pressure fuel pump cover.
  2. Check pin 4 green/white and pin 2 yellow wires for a short to ground.
    1. If either one is shorted to ground, remove the high pressure fuel pump cover and replace the pump cover gasket/harness that contains the grounded wire ONLY. The high pressure fuel pump does not need to be removed and replaced. Refer to the Workshop Manual (WSM), Section 303-04C.
    2. When removing the low pressure fuel lines and high pressure fuel tubes from the high pressure pump, use a back up wrench on the high pressure pump fittings to make certain that the fittings are not loose as the cap nuts and high pressure fuel tubes are removed (this may cause a fuel leak).
    3. When installing the new high pressure pump cover gasket/harness, verify that the VCV wires are wrapped in either high temperature convolute or a mesh style abrasion wrap.
    4. When making electrical connections to the high pressure fuel pump, pull the connectors to verify connectors are locked in place.

PART NUMBERPART NAME
8C3Z-9G805-AKit-Cover Fuel Pump

WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATIONDESCRIPTIONTIME
072602A2008 F-Super Duty 6.4L: Replace High Pressure Fuel Pump Cover Gasket, Includes Time To Remove And Install Cab, And Perform Diagnosis (Do Not Use With 6007B, 6007B47, 6007B50, 6007B51, 12650D)8.4 Hrs.

DEALER CODING

BASIC PART NO.CONDITION CODE
9G805X1