06-22-15 Heater Core Leaks - 6.0l Engine - Diesel Truck Forum - TheDieselGarage.com
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06-22-15 Heater Core Leaks - 6.0l Engine

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TSB
06-22-15 HEATER CORE LEAKS - 6.0L ENGINE

Publication Date: October 31, 2006

FORD: 2003-2005 Excursion
2003-2007 F-Super Duty


ISSUE:
Some 2003-2007 F-Super Duty and 2003-2005 Excursion vehicles equipped with 6.0L diesel engines may exhibit a leaking heater core. The majority of repeat heater core leaks are due to a high flow rate or use of poor quality coolant.

ACTION:
Follow the Service Procedure steps to correct the heater core if it is leaking, review the location of the leakage and check the condition of the coolant.

SERVICE PROCEDURE

NOTE: IT IS VERY IMPORTANT TO COMPLETELY FLUSH ENGINE COOLING SYSTEM TO REMOVE ANY POSSIBLE CONTAMINATION.



Flush and refill coolant, reference Workshop Manual (WSM), Section 303-03.
Replace the heater core, reference WSM, Section 412-02.
Disconnect the inlet heater hose at the engine outlet port.
Install a restrictor in the inlet heater hose about 5" (127 mm) from engine end of the hose.
Make sure that the tapered end of the restrictor points toward the engine. (Figure 1)


Figure 1 - Article 06-22-15


CAUTION: CORRECT LOCATION AND POSITION OF THE RESTRICTOR IS NECESSARY FOR PROPER FUNCTIONING.



Clamp the restrictor in place using a worm-drive type hose clamp. (Figure 1)
Refill coolant, reference WSM, Section 303-03.
NOTE: FOR ADDITIONAL INFORMATION ON HEATER CORE FAILURES AND ELECTROLYSIS, REFERENCE TSB 06-21-19.




PART NUMBER PART NAME
E1DZ-18D358-B Restrictor
4C3Z-18476-BA Heater Core

NOTE: THE RESTRICTOR PART IS SOLD IN PACKAGES OF TWO (2), BUT ONLY ONE (1) NEEDS TO BE INSTALLED PER VEHICLE.




OTHER APPLICABLE ARTICLES:
06-21-19

WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage

OPERATION DESCRIPTION TIME
062215A 2003-2007 F-Super Duty, 2003-2005 Excursion And Equipped With A 6.0L: Replace The Heater Core, And Install A Restrictor In The Inlet Heater Hose, After Flushing The Cooling System (Do Not Use With 8005D, 18476A, 8005B, 19700A, 04320B 8575B1) 2.9 Hrs.

DEALER CODING
BASIC PART NO. CONDITION CODE
18476 42

--------------------------------------------------------------------------------

NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.

Copyright 2006 Ford Motor Company

06 F-350 Crewcab 5.9 CR
03 Excursion 6.0
99 F-250 7.3
97 Dodge 3500 5.9
95 F-250 7.3
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